How To Speed Up A Download On Mac

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Large quantities of e-mail can clog up your system really fast. When in your opinion Mail is running slowly try one of the following solutions:


How To Speed Up My Mail

If you follow these tips, you’ll speed up Mail immensely:

  • Clean out regularly your Inbox and your Sent folder. Delete all unnecessary messages, don’t keep hundreds of them in your Inbox if you don’t need these letters.
  • Archive the messages. Archiving them is usually useful if you have messages on a server. Create a new mailbox (you can call it Archive) and drag messages there from a Mailbox. To create the new mailbox, choose Mailbox – New Mailbox.
  • Split Mailboxes. Sometimes you’ll need to keep hundreds of messages in your Mailbox. Why not to create two mailboxes and split messages accordingly?
  • Check for the new messages less frequently. Indeed, checking your Mail less frequently enables the system to perform faster. Choose Mail – Preferences. Then click General. Use the Check for New Messages drop-down menu to check for email every hour or so.
  • Remove recipients: By default, Mail will remember every e-mail address you enter. After a while, this gets clunky. Choose Window – Previous Recipients. Now highlight any recipients you don’t need anymore. Click Remove from List.

Speed: IMAP versus POP

Aug 23, 2016 RELATED: 10 Ways To Free Up Disk Space on Your Mac Hard Drive. As on any computer, freeing up disk space can also speed things up if you have a very small amount of disk space. To check, click the Apple menu, select “About This Mac,” and look under the “Storage” heading.

Two main types of e-mail system exist. That’s Internet Message Access Protocol (IMAP, for short) and POP (Post Office Protocol). When IMAP is used, all e-mails are stored remotely on the server (some exceptions apply). On POP, the messages are downloaded from the server and stored on your computer (also with few exceptions).

Nopy Slow

Using POP, you have a speed advantage, as once the messages are downloaded, they can be downloaded instantly. IMAP, on the contrary, depends on how fast your server and network are running. IMAP is very useful, when you need to access your e-mail from more than one device. In this case, the messages are synchronized across iPads, iMacs, iPhones, Apple Watches, MacBooks and so on.

Check also our text How to Speed Up Applications.

What to Do if Your Mail Runs Slowly

If your mail runs slowly, you can do the following (Please test after taking each of the following steps that you haven’t already tried, before you proceed. Stop when the problem is resolved). Don’t forget to back up all data before making any changes.

Step 1: If you use iCloud Drive, open the iCloud pane in System Preferences. There is a checkbox marked iCloud Drive. Next to that, you’ll see a button marked Options. Click that button. In the sheet that drops down, uncheck the box marked Mail if it’s checked.

Note that this Mail checkbox is not to be confused with the another one, also marked Mail, that appears when you first open the iCloud preference pane. They have different effects.

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Step 2: (If Mail still won’t launch, or if you can’t take this step for any other reason, skip to Step 3.) As we explained above, there are three types of mail account: IMAP, Exchange, and POP. You can determine the type of each account by opening the Mail preferences window, selecting the Accounts tab, and then selecting Account Information. Export all POP mailboxes to the Desktop folder. If you have IMAP or Exchange accounts, and you don’t store sent, deleted, and junk messages on the server, export those mailboxes the same way. You can determine whether the messages are on the server by selecting Mailbox Behaviors in the Accounts tab. Also export all mailboxes in the On My Mac category. You don’t have to export the other mailboxes, because the messages are stored on the servers. Quit Mail.


Step 3: In System Preferences, open Internet Accounts (OS X 10.9 or later) or Mail, Contacts & Calendars (OS X 10.7 or 10.8). Make notes of the settings for each mail account (all types), then delete the accounts.

Step 4: Quit Mail if it’s running. In the Finder, hold down the option key and select Go – Library from the menu bar. Move the following items (but note that some of them may not exist) from the folder that opens to the Desktop: Application Support/AddressBook/MailRecents-v4.abcdmr

Important note: you are not moving the Mail application. You’re moving a folder named “Mail.”

Step 5: Now launch Mail. It will behave as if you were setting it up for the first time. Go through the setup process with one account, using the information from Step 3. Test. If Mail works now, recreate the rest of the accounts (if you have more than one) and other settings. Any custom stationery that you created may be lost. Ask for instructions if you want to preserve that data. If there’s no improvement, quit Mail and put back the items you moved to the Desktop, replacing any newer ones that may have been created in their place. Stop here and post your results.

Step 6 If you took Step 2, import the mailboxes you exported (see the support article linked to Step 2 for instructions.) Typically, the process takes a few minutes, but it may take hours if you have gigantic mailboxes. In that case, you may be able to speed things up by temporarily adding your home folder to the Privacy list in the Spotlight preference pane. Remove it when Mail has finished importing. The mailboxes that you didn’t export should synchronize automatically with the server. Again, if the mailboxes are very large, downloading them may take quite some time, and network performance will be slower than usual during that time. If you skipped Step 2, look inside the Mail folder on the Desktop for a subfolder V3/Mailboxes (for OS X 10.11 or later) or V2/Mailboxes (for any older version of OS X). Import the mailboxes it contains and test. If Mail is still working, delete the items you moved to the Desktop in Step 4. Re-enable the Mail option in the settings for iCloud Drive, if you disabled it, and test again. If you weren’t already using iCloud Drive with Mail, there is no need to enable it now, unless you want to.


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There are multiple factors that can dramatically influence the download speed on your Mac. Factors slowing down your downloads may be external, like the type of Internet connection used (cable, fiber, DSL), the Internet plan you've purchased from your ISP, and even the processing capabilities of your device. Sometimes, to speed up the downloads, you just need to tune the settings of your downloading app.

Let’s review all the factors that can hold back your downloads to be able to address the potential issues.

1. Actual Speed of Your Internet Connection

If you are constantly experiencing sluggish performance, like buffering issues when watching videos or slow-loading websites, it’s high time to check your Internet connection. Knowing the speed of your Internet connection can give you an exact idea about what's going on and will help you troubleshoot the slow speeds.

How To Speed Up Transmission Download Mac

The easiest way to accurately measure the bandwidth speed of your Internet connection is to use a special online service, like Speedtest, or any other you prefer. The service will determine the performance of your Internet connection taking into account both download and upload speed indexes, as well as latency (network delays). The speed can be also tested on different servers - local and remote ones.

The download speed shows how quickly your device is downloading data from the Internet. On the contrary, the upload speed indicates the speed at which your device can upload data to the Internet. Both types are usually measured in Mbps (one megabit per second), which is equivalent to 1,000 Kbps. The higher the rating, the faster your Internet is.

Don’t get confused with the difference between megabits (Mbit) and megabytes (MB).

How To Speed Up Sims 4 Download On Mac

1 byte = 8 bits

So, the speed value of 100 Mbps, indicated in your ISP contract, is equivalent to 12,5 MBps.

When you've finally got a sense of the actual parameters of your Internet speed, you can now see where the problem may potentially lie. For example, low download and upload speeds may signify that there’s an issue with your ISP (Internet Service Provider).

Your actual speed may be different from the one promised in your contract. Even the slightest difference can significantly affect the download speed.

Also, when getting slow download and upload speeds parameters, make sure to check the hardware. Using a wrong router or the cable which is insufficient for the bandwidth (for example, a 100 Mbps Ethernet cable while you have a 500 Mbps connection) may involuntarily slow down your Internet.

On the other hand, if speed tests show acceptable parameters, you may consider upgrading to a different plan from your ISP that features higher speeds, to maintain the type of online activity that you do. Check the maximum download and upload bandwidths allowed by your ISP. Downloading speed cannot surpass the one set up by the ISP. Torrenting, watching online videos, uploading tons of images to Dropbox or gaming surely require higher speeds than checking your email twice a day, so consider updating your ISP package.

When speaking of Folx, its maximum download speed is limited by the bandwidth speed and in reality can be even lower, since a certain part of the bandwidth always belongs to the service traffic. However, Folx's download speed may be significantly higher when downloading within a local network.
2. Outgoing Traffic Limitations

Often your download speed can be downgraded by the speed limits imposed by the contributing part. For example, a server can restrict the outgoing traffic or seeders can be deliberately limiting their upload speed.

3. The Device Type

Write speed is not the same for various devices like network drives, external hard disk drives, USB flash drives, etc. For instance, the speed at which data is read/written becomes the distinguishing factor when comparing HDD and SSD, the latter providing remarkably enhanced performance. So bear in mind that performance restrictions and transfer rate of certain storage devices can significantly affect the download speed.

4. Restricted Internet and Censorship

Some countries with the censored Internet use various techniques to restrict access to unwanted content, including site blocking. China’s infamous “Great Firewall” is a classic example of Internet censorship. The users have to rely on various circumvention tools to access the blocked content, e.g. using proxy servers outside the firewall. Our recommendation is to use the desktop VPN running as a standalone application instead of an add-on to a browser, to encrypt all the traffic from your Mac to the Internet.

5. ISP Bandwidth Throttling
Throttling is an intentional slowing down of your Internet connection speed during the peak traffic hours by your ISP. Usually, it is done to regulate network when many people are all using the Internet at the same time. You’ll find that speeds return to normal late at night, for example, so you can try downloading when fewer people are online. Folx features a scheduling option to set up your downloads strategically during the off-hours.

How To Increase Download Speed On Mac

Apart from limiting Internet speeds at certain times of a day, many Internet providers can also use another type of bandwidth throttling called Peer-to-Peer traffic control. This traffic-shaping technique restricts the speeds for specific websites and protocols, which usually affects such activities as video streaming, file-sharing, gaming, etc. Reducing the data usage can badly hold up downloading, especially from P2P networks like BitTorrent. The only way to bypass the P2P block is to use VPN. Data encryption prevents your ISP from determining what type of traffic you are having. Since it becomes impossible to inspect your traffic, there’s no way to throttle it. However, remember that using VPN itself degrades the Internet speed to a certain level. Speed drops can be caused by multiple factors, including extra CPU usage, excessive load on the router, latency caused by sending your data to a VPN server that is located geographically far away, and so on. Moreover, note that the higher the encryption level is, the more noticeably the speed is hampered.

To boost the download speed when performing direct downloads (via URL), you can try splitting the download into a number of threads. Fast downloading is ensured by multiple simultaneous connections (up to twenty) retrieving the same file split into numerous data packets. However, sometimes multithreading may potentially make things slower, say when the server is limiting the download speed for each connection or if the server is single-threaded. In this case, individual wait time for each thread becomes longer, thus using more threads makes the download slower than using fewer threads.
To accelerate the speed of torrent downloading, try playing with Folx settings:

How To Speed Up A Download On Mac Computer

1. Make sure the Incoming TCP port is open (

Opening incoming TCP port lets you connect to a possibly bigger number of peers and ultimately improves the download speed.
Closed incoming TCP port does not prevent you from connecting to other peers, provided their incoming TCP port is open. However, when you close the incoming TCP port, other users cannot connect to you.
To make the port available for the incoming TCP connections, do the following:

  • Make sure an antivirus software or firewall are not blocking the incoming connections for Folx. To know how to configure the antivirus special settings, refer to its user manual.

If firewall is activated on your Mac, go to System Preferences > Security & Privacy > Firewall (if enabled) > Firewall Options. Allow incoming connections for Folx.

  • Make sure NAT-PMP and UPnP options are on for automatic port forwarding (Folx->Preferences…->Torrents->Network).
  • Manual port forwarding can be customized in the router settings. Refer to the router user manual for detailed instructions. Note that the “Randomize port on launch” option should be disabled in Folx network options.
  • Sometimes your ISP can block non-standard ports, so you have to contact the provider to remove the restrictions.

2. Go to Folx->Preferences…->Torrents->Peers and enable the following options:

DHT Network
Local Peer Discovery
Peer Exchange
Prefer encrypted peers
The “Ignore unencrypted peers” option should be disabled:


Macbook Slow

3. Remember that the BitTorrent protocol uses a kind of fairness system to prevent the users from setting upload speed too low to regulate the bandwidth consumption. So limiting upload speed can decrease download speed, too. Try keeping a reasonable upload limit so that your download speed is not affected negatively.