Most of the engine has become garbage.
They use it for specific things and if you don’t use it as they use it you are SOL…
Stick to older version if possible. 4.18 is when the landacape system LODs still worked with a distance value.
After that some asshat changed it to be a size on screen percentage and broke LODs.
Around .22 is when they messed with it again to add something and fckd the pysical material response.
Around .24 is when the non destructive editing with layers messed up performance.
And in .25 you have a silightly better performance again, but still bad LOD distribution because they never replaced the change from .18
5 and anything after is just pure trash really. They didnt improve anything. They broke Hlods on top of it.
There is one possible improvement and thats the fact data layers let you load stuff. But its really measly compared to every bit of functionality you either loose or compromise on…