I'm even using MoreCulling and CullLeaves (Also tried CullLessLeaves), and also a resourcepack to cull leaves, and everything still results in the leaf blocks being culled but not the extras added by this texture pack, which really tanks my performance with lots of trees (I know having lots of trees will hurt performance in any case, but this doesn't help). Can this be reasonably fixed? Using Fabric 1.18.2 in case that matters. Thanks in advance.

Here's a maybe not great couple of screenshots to show what I mean: https://imgur.com/a/BCxJ6ft

I tried to find a balance between performance and quality here, quite a few parts of the extra leaves get culled, but some don't so they still look bushy and dense.

If your pack has similar culling to vanillaTweak's one, it would be really great

according to MoreCulling's side, it is due to packs "did not properly setup the cull faces for the bushy parts" which made them not culled by moreCulling

I really wish similar thing could be done to your pack because the mod compatibility of your pack is really amazing!