So I thought I would share this to make everything easier. I have a laptop with windows 10 installed. Whenever I downloaded any games, the laptop would become barely usable. Tried everything people said, nothing worked. Then I tried turning off Windows Defender. And it instatly changed everything. Download speeds went up, and the PC was useable again. The annoying part is, even if I was downloading from MS store, Defender would slow down my PC. I hope this helps you to have a functioning system. After the download finished, I enabled Defender, and the performance stayed the same.