Do you experience problems during downloading?
Check your connection in Status and Interface settings window.
Use Test Server in Config > Servers.
We will probably ask you to do a test using only basic settings.
Do you experience problems during repair or unpacking?
Enable +Debug logging in the Status and Interface settings window and share the relevant parts of the log here using [ code ] sections.
I use Windows 10 and i use the same Settings on latest stable and alpha. Whene i make a dowload on the stable build i have full spped, on the aplha build my speed is lower. I dont have update the stable, i use a owen folder for the alpha build.