ForgetMeChunk

ForgetMeChunk is a simple client side mod that prevents light map unloads on the client,
this eliminates the fps drops caused by crossing certain chunk borders

However this casues a memory leak, this memory leak is reset by changing dimension or leaving the server/world,
So use at your own risk

Demo

Demo performed using Hermitcraft season 8 world download & Minecraft 1.18.1