Method:
Run, then type '%localappdata%' after that locate your EpicGamesLauncher file, go to Saved, Config, Windows, Click this Engine.ini file and copy past this:
[HTTP]
HttpTimeout=10
HttpConnectionTimeout=10
HttpReceiveTimeout=10
HttpSendTimeout=10
[Portal.BuildPatch]
ChunkDownloads=3
ChunkRetries=20
RetryTime=0.5
after that Save it by clicking File on your top left corner. Thats it!!
Now you can download games at an increased speed compared to before.
Sub for more content.