i have the itch app on my Mac book and PC and the exact same problem keeps happening. When i download a game it starts like normal for 3 seconds before stopping for a few more seconds or even minutes just to download again for another 3 seconds. so even a few megabyte game takes hours or even days to download. Ive tried re downloading the game and app, ive run the app in admin, and ive tried hotspoting my PC and changed the download folder location for nothing to work this has been an issue for over a year now. Any help 

Also it isnt all games but i would say its the majority