One suggestion I have is to download Cakewalk by Bandlab and try the plugin there. CbB is free to use. I suggest this not to dissuade you from using CB, but to verify that it is an issue inside Cubase and not a computer issue.

https://help.cakewalk.com/hc/en-us/articles/360002690674-How-To-Download-Install-Cakewalk-by-BandLab


HP Win 11 12 gig ram, Mac mini with 16 gig of ram, BiaB 2025, Realband, Reaper 7, Harrison Mixbus 9 32c , Melodyne 5 editor, Presonus Audiobox 1818VSL, Presonus control app.