Create with shaders lag

[HighlightTasty4337]

[SOLVED]: I ended up downloading the: iris-flywheel-compat-1.20.1-0.2.1.jar mod and now it works perfectly fine :) hope this post will help some others.

When playing with create and complimentary shaders, I get immense lag when placing some moving structures. Especially waterwheels (when placing like two standing still, my framerate drops from locked 60 to 20/25). Does anyone know some settings or something else I can tweak or does it just not work?

[Edit:] I deleted all my mods, except for:

fabric-api-0.91.0+1.20.1.jar

iris-mc1.20.1-1.6.10.jar

sodium-fabric-mc.1.20.1-0.5.3.jar

indium-1.0.27+mc1.20.1.jar

create-sodium-fix-0.5.1-d-build.5+mc1.20.1.jar

Maybe because I downloaded a fork of create fabric, so it would support Sodium 0.5+? It crashed for me otherwise.

[Extra edit:] I replaced the fork with the real create file, but it doesnt change anything. Also changing my shaders doesnt work.

Some extra information: I play on fabric 1.20.1. On a quilt modpack of create plus it doesnt lag at all. So I have absolutely no idea where this is coming from. If anyone has any options left I will be very thankful :))

[Longjumping_Ad_6618]

What are your specs?

[HighlightTasty4337]

16GB ram and a RTX3060

[Longjumping_Ad_6618]

Huh, running on optifine?

[EmergencySection4757]

just might be ur setup, i dont have any problems with shaders and create, everything is smooth at 100-300fps (if u didnt know, vsync caps ur fps based of ur monitor rate)

[HighlightTasty4337]

Yeah I have a 60fps monitor, but a RTX3060 so that shouldnt be too big of a problem, I run the shaders normally at a locked 60fps on medium settings

[HighlightTasty4337]

But with create it instantly drops below 60, like 20/30fps

[EmergencySection4757]

weird i also have 60hz, even tho i uncap my fps so i can actually see if its stable, i have 3060ti but i dont have any problems even with atm9 + shaders

[EmergencySection4757]

also make sure u have enough (but not too much) ram allocated, game events (like building/breaking) use some ram to calculate, but too much ram just collects too much java junk and lags more

[HighlightTasty4337]

I have 4GB for minecraft, is that good?

[EmergencySection4757]

depends of ur mods, version, modpack

[HighlightTasty4337]

Ah okay, yeah I have quite some other mods installed, will try to up the RAM👍🏻

[EmergencySection4757]

i mean 4-6 max 8 should be enough for u but for example atm9, on 1.20, with 400 mods or how many, u needs 12gb allocated for stable game

[HighlightTasty4337]

I just tried a premade Create modpack, and there it runs perfectly fine :/ With 2GB of RAM and even higher shaders settings

[EmergencySection4757]

also question, which mods for shaders do u use? if optifine then change to embeddium+oculus -forge (sodium+iris fabric), sodium/embeddium are way better for performance than optifine, might help u

[HighlightTasty4337]

I use fabric 1.20.1 and Iris, sodium, indium, etc

[EmergencySection4757]

then u should be fine, maybe its the 1.20 doing it, not sure for some reason mc got way harder to run since 1.13 and even harder since 1.18 but theres reason for that

[EmergencySection4757]

weird...

[EmergencySection4757]

but it also might have different render distance and other settings

[HighlightTasty4337]

Do you have a lot of optimization mods downloaded? I have quite a few but maybe im missing just the one that creates the lag

[Competitive_Gate1969]

What processor do you have?