Import preview/thumbnail generation extremely slow using RAF Fujifilm files.

I use both Fuji and Canon raws in lightroom classic. When attempting to import Canon raws, the preview/thumbnails in the import window show almost instantly with no issues. However, when trying to import with Fuji RAF raws, it takes several minutes to even load a few dozen previews/thumbnails.

I have tried using minimal preview builds as well all the other options. I’ve set my photo cache to varying sizes from 5gb, 20gb, 50gb and 100gb. I have tried changing all the performance options and it made no change. I’ve tried using a different drive on my PC from SSD to USB. The only way I can get fast previews is by connecting my camera to the PC and importing directly to LR Classic from there.

Are there any solutions to this or is it just LRC handling Fuji RAWs poorly?