The speed at which you can download files if affected by many variables such as: File size, your internet speed, time of day, contention rate in your area, your ISP, your internet service plan, whether you are on a wireless, wired or cellular network and speed of your local network, etc. Most of which is outside of our control.
While we don't guarantee any speed, if you are finding downloads exceptionally slow, you can try again a few hours later.
Note: While some internet providers provide 'Unlimited' fast data plans, some may throttle the speed back in times of high use or high load.