Absurd lag on Minecraft 1.17.40

For Windows 10, running the game in windowed mode solves the problem for me.

for me I solve with my Anti-lag texture

Thank you for your report!
However, this issue has been temporarily closed as Awaiting Response

Is this still an issue in the latest version (1.17.30)? If so, can you please add it to the affected versions (or mention it if you are not the reporter).

Also, just a reminder, to make your bug report as effective as possible, please try and include the following steps to reproduce the problem:

Steps to Reproduce:
1.
2.
3.

Observed Results:
(Briefly describe what happens)

Expected Results:
(Briefly describe what should happen)

If your ticket does not look like the example given here, then it's likely to be closed as incomplete.

This ticket will automatically reopen when you reply.

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Steps to Reproduce:

1. Play in a world or server.

2. Observe framerate.

Observed Results:

Framerate is hugely impacted compared to previous versions

Expected Results:

Framerate is slightly impacted compared to previous versions (Due to features which would slightly decrease framerate).

Resolving temporarily as Awaiting Response. Is this still an issue in the latest version (1.18.2 Hotfix or 1.18.10.22 Beta)? This ticket will reopen automatically when you reply.

Cleaning up old tickets: This ticket had been set to 'Awaiting Response', but has not received a response from the reporter (~3 months+) so is being closed as Incomplete. If you feel this is still a valid issue then please comment, or create a new ticket following the Issue Guidelines which includes steps to reproduce the problem.

For any account or purchasing related issues, please contact Minecraft Customer Support directly, as we cannot assist with those here at the bug tracker.

Quick Links:
📓 Issue Guidelines – 💬 Mojang Support – 📧 Suggestions – 📖 Minecraft Wiki