Using smoothing is out of the question since my pc certainly can’t handle 144+ fps in PS2 at all times and the point of capping in the first place is to have stable frametimes.

I switched to the MaximumFPS solution, and my frametimes were jittery and induced stuttering exactly like what that guy had https://old.reddit.com/r/Planetside/comments/bhypyz/your_game_stutters_a_lot_try_rtss_to_get/ and in short the game was absolutely unplayable.

A comment in the reddit thread suggested that you could have the best of both worlds by using both rtss and MaximumFPS, but in my tests, whatever MaximumFPS was set to : 250, 93, 91, the rof stayed at 92%.

So my conclusion is this : if MaximumFPS introduces jittery frametime and stuttering for you (I’d be interested to know if it happens for everyone) and if your monitor has a refresh rate far above what PS2 can run at which is most 120+hz owners since PS2 runs like shit in big fights, then your only choice is to use RTSS and suffer from the slight handicap that reduced rof will bring.

Here some more helpful info (especially for G-Sync users): https://www.blurbusters.com/gsync/gsync101/

e.g. comparison between ingame and external framerate limiters: https://www.blurbusters.com/gsync/gsync101-input-lag-tests-and-settings/11/

Optimal settings: https://www.blurbusters.com/gsync/gsync101-input-lag-tests-and-settings/14/