Is 30FPS Enough

30FPS is enough to run the game with minor rendering but when it comes to games that need to go along with fast reaction and timing you definitely need more than that.

I don't like it, I don't like anything under 100 fps

30 is hell once you've had anything better. Battlefield 3 on consoles was fucking rough man.

30 fps is fine so long you haven't experienced anything else. 60fps feels slow now that im switched to a 144hz

I mean it depends on what game you're playing but I wouldn't ever play a game if my FPS was 30

depends on the type ofgame you are playing. It is enough but once you get higher frame-rates you will want higher frame-rates.

I only find 30 fps bearable with minecraft/optifine when i'm running shaders, otherwise it's just painful on the eyes

Initially, 30fps is fine. But, once you set eyes on a 60hz experience, you'll never want to come back. Same goes when you move up to 120/144hz.

If you are playing an online FPS - you should have at least 60fps. Much smoother faster and you are even better in playing.