yeah frame rate is really noticeable
i was playing GTA3 with an uncapped frame rate and it was really smooth
but if the game runs at too hi of a frame rate then the physics of the game start to glitch out
so i had to use the in game cap of 30 frames and it was very jarring and hard to get use to
Man, I had to lock games at 30 on my laptop and got used to it, but now that I got a good desktop I play everything at 60 and I got used to it. I tried to cap Witcher 3 at 30, just to see, and DUDE the difference.
I used to roll my eyes when I read or heard people say "I'm used to 60 and can't play 30 FPS games anymore, feels choppy"... but now I know those people (TotalBiscuit for example) got a point.
I mean, I'm not at the point where I CAN'T play at 30, but the difference from 60 is indeed big and you feel it.