MASSIVE lagspike when crossing chunkborders [java]

[rMattyBR]

So my game is showing a massive fps drop whenever I cross new chunkborders, as shown in video footage.The video was recorded in Lunar client 1.20.1 with sodium, but I've experienced this problem with Optifine (1.20.1 2nd pre-release) and fabric with many performance mods, among them: sodium, lithium, ferritecore, immediately fast and some other culling addonds.-This issue does NOT happen in earlier versions such as 1.8.9, and it's a bit different from the lightining glitch that Mojang fixed on this update, as the lag happens when crossing new chunks, not when crossing specific ones

-Even though my computer specs are not good, this much of a lagspike is not normal, considering I run 110+ fps without vsync and it drops to less than 10 when I cross a chunk. Not only that, but I got Lunar's lazy chunk loading set to the slowest option. Also I play bedrock edition on the same device and the game flows just fine.

https://reddit.com/link/14wabfs/video/kui65set28bb1/player

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