Gran Turismo 4 Jitter and Slowdown

[Neo_Emulates_Games]

https: // www. youtube. com /watch?v=IFgO9u57eh8
details in the video, but for a brief overview:
i'm trying to run gt4 on the nightly build of PCSX2 with the remastered texture mod, but there seems to be a couple of issues:
- The textures aren't loading (as far as I can see, since the remastered mod on some of the loading screens just aren't appearing)
- the game isn't running at a consistent 60fps (2080ti/i9 combo really shouldn't be struggling with this)
- when the game drops frames, it shakes like crazy, even with an interlacing method.

all of the settings menus are in the video, i have tried to mess about but I'm not sure what's wrong. Anything I could change to not make this so much of an issue?

[jesalvein]

does it work fine without the texture mod ?

[Neo_Emulates_Games]

does it work fine without the texture mod ?

it doesn't, nor does it work better at lower resolutions

[jesalvein]

Could be a good idea to enable osd stats to see why it's struggling

2080ti/i9 combo really shouldn't be struggling with this)

What makes you think this ?

[Neo_Emulates_Games]

Could be a good idea to enable osd stats to see why it's struggling
What makes you think this ?

I mean, if it can run most games in the triple digits natively, is it unfair to ask for a standard 60fps on a console from 2001? i don't think that's unreasonable.

I also want to state that my cpu was at 17% and my gpu at about 40% on task manager; it has headroom for this.

https://youtu.be/BdP1d6Bo0Xc

[jesalvein]

I mean, if it can run most games in the triple digits natively, is it unfair to ask for a standard 60fps on a console from 2001? i don't think that's unreasonable.

unrelevant comparison, since you're not running natively that game from 2001, you're emulating it

I also want to state that my cpu was at 17% and my gpu at about 40% on task manager; it has headroom for this.
https://youtu.be/BdP1d6Bo0Xc

looks perfect to me (apart from the jittering)
IIRc this game tends to adapt internal fps, and that's why you don't keep a steady framerate. try on your real console, you'll see.
I suggest you use vulkan renderer too

[Neo_Emulates_Games]

vulkan doesn't change much, but i guess that would make sense. Do you have suggestions to fix the jittering? is there a no-interlacing/progressive patch for gt4 i could use? it seriously gives me a headache to see it.

[admihai3]

I also want to state that my cpu was at 17% and my gpu at about 40% on task manager; it has headroom for this.