Polynurbs problem - slow and grafik problems with polynurbs Inspire 2025 Win 11

Hey, I'm struggling with the polynurbs action after the optimization.

Inspire is running well with optimisation until I want to edit the result with the Polynurb tools. Then my computer is rapidly slowing down and the grafics struggling to I point were I cannot work on. As soon as I ESC the polynurbs tools, the program is running smooth again with all features.

Please find attached media.