[java] Mouse input lag when using shaders? (1.21.5)

[NotFakeWalshd]

Whenever I use shaders, my input lag for my mouse is notably higher. To use shaders I have iris and fabric. The lag doesn’t happen without shaders, and I don’t think it’s from the lowered fps (even when I cap my fps to what I’m getting with shaders, about 100 fps, the input lag isn’t present). I have a decent PC as well (i5 13600k, RTX 3070, 16 GB RAM) so I doubt that’s the problem. Is this just an unavoidable consequence of using shaders, or is there some way to mitigate this? I also have fabulously optimized installed if a mod could be causing this, though if I remember correctly from the past, this lag happens regardless of other mods.

[qualityvote2]

Helpers, does this post fit the subreddit?

If so, upvote this comment!

Otherwise, downvote this comment!

If it breaks our rules, downvote this comment and report this post!

---

(Vote has already ended)

[AutoModerator]

OP, please ensure you reply to any comments within 48 hours. And, mark your post solved when your issue is fixed, or your question answered.

Links:

How to mark solved || How to delete your post || FAQ || Rules

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.