Describe the Suggestion

You may have noticed from time to time that certain blocks are extremely slow in performance.

One reason could be that these blocks (in these subfolders) are not saved in .json form (Minecraft model), but in an .obj file.
The conversion from 3d model to a format readable by minecraft takes unnecessary performance. I believe and am also quite sure that you can then achieve higher fps even with shaders and therefore without flywheel optimization.

Screenshots and Videos

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Additional Context

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It does not, there are models that cannot be made in minecraft's json format because of its limitations, create fabric uses porting libs obj loader which is a port of forge's obj loader which has existed for ages and no one has reported any performance issues caused by it, obj models do not affect performance