Crossing a chunk border causes fps drops. Issue doesn't seem to happen in 1.12.2 and below.
Crossing chunk border in 1.15.2 : https://www.youtube.com/watch?v=YVK7OcyKuvM
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I also have this issue and it affects all versions that Op mentioned. Happens when I use either a Amd Ryzen 3700x and Amd Ryzen 5800x cpu. Tested different motherboard/ram configs. Reinstalled Windows/minecraft to no avail.
Specs : Ryzen 5800x
Nvidia 2080ti
16gb ram
Nvme hard drive
Windows 10
Thank you for your report!
We're actually already tracking this issue in MC-162253, so I resolved and linked this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature in the future to see if the issue has already been reported.
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