Rendering with LensDistortion extrem slow

I have a 5,8K Video from a GoPro Hero 11. Without the lens correction, rendering is almost around 60fps on my MacBook Pro M3 Pro. When the lens correction in fusion is activated, the rendering drops to 1,5fps. Is that a bug? Do I need to activate some options for better rendering, or do I just need a better MacBook?

Don't use Fusion, but the Lens Correction filter in the Edit page.
Much faster here on a lesser MacBook, better than 2x realtime in UHD.