whenever i use optifabric (tested it and it does not happen without it) breaking blocks will be laggy, world loading will be slower than usual and the game would sometimes freeze when typing commands

1.16.2 Fabric
I'm not using any mods that should effect video stuff, also played with only optifabric (and optifine) and it happened

@Skywalker8510 are you seriously replying 2 years after I made the issue
Didn't close the issue because I stopped playing Minecraft but I never saw the bug getting fixed.

@LiamDun if this isn't a problem anymore you should close the issue

There is already one report of someone getting something which sounds to be a problem along the same lines: #17, are you getting those kind of symptoms too? If it's happening just with OptiFabric + OptiFine I'd also suggest trying with OptiFine alone to make sure it's not a problem with it rather than something Fabric/OptiFabric is causing.

oh yeah for sure, one of the main issues I'm having is world loading and generating is way slower and this 100% doesn't happen with vanilla optifine, it's something on optifabric's end

If you're seeing the same symptoms are you also using Lithium? If you're purely using OptiFabric alone with no other mods this would be exceedingly strange.

I am using OptiFabric alone with Optifine. I am having the same symptoms. I'm playing on 1.16.3. Should I use a older version?

It should be good to include system specifications as they will at least let us know what kind of framerates you should be getting.

there's no point replying 3 months after I wrote the issue but ok,
as I said, it's not about the framerate, it's laggy block breaking animation, really slow world saving and opening, and game sometimes not responding when I use chat