Possible, do you think you could optimize the Vethea dimension for better performance on lower quality computers? I have 1.4 Ghz processor, and the lag for the dimenstion is antagonizing, like around 5fps at the best.

try to pregen wethea. but yes, wethea is most demanding on resourses.

Pretty hard to optimize it more. The best you can do is to turn down your render distance.