Moving or lengthening the spline in UE5.1 slows it down excessively. UE5.1 Spline Bug

Hi,
I would like to provide a feedback on the bug report form.
I tried to fill out this form, but since my English is not enough, I had a little difficulty and frankly I could not succeed.
Because almost all form fields are required to be filled. This problem was actually a problem that could be explained in one sentence.
It would seem like it would be better if they had a simpler bug report form so we could submit more obvious issues like this.
Or, at least, the obligation to fill in all form options can be reduced.
Thank you.