does it absolutely never go past or under 75?
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does it absolutely never go past or under 75?
Turn off vsync.
Check if your drivers are up to date, I had a fps drop problem with csgo and updating my drivers helped.
Also this might be a bit useless, but try disabling start up programs that aren't important.
Tutorial here: http://imgur.com/a/XjHeV
Thanks, will try all of the above and will let y'all know.
Fixed by disabling vsync.