Krisius :
What about msi afterburner rivatuner?
Yep, in Rivaturner there's an FPS limit option, won't impact performance, just caps FPS. I used it to fix/have higher than 60 FPS in FO4 (but not higher than 80 because it causes problems)
the V-Sync graphics option also limits it your frame rate, but can cause some slowdown.