This is interesting. Does it affect every system out there or just some configurations? 1803 is running fine for me and my games (8GB RAM)

Partially WRONG. I have noticed slowdowns even on SSD if Superfetch is disabled. And don't talk about disabling Superfetch for mechanical hard disks. I did a test yesterday (HD) and I noticed a huge...

I have to do some tests too, but it seems Superfetch works properly for me. If you have SSDs you can try disabling Superfetch. You will probably don't lose that much.