Peggytrill

Hey all, first post here - I was playing csgo for a while yesterday and I usually get about 180-200 fps with all settings on low (not the best I know) but randomly today its been hovering around 80-120 fps... as far as I know I didn't change anything in any game settings nor OS. I do have an update that's currently installing called 'Feature update to Windows 10, version 1809 amd64 2019-03' so i'm hoping that's the cause but I really don't know. Anyone else have a similar issue?