Type lagging in Scrivener 3

Hi all,

I just upgraded to Scrivener 3 after using the Scrivener Beta for months.

My question is why there is a type lagging on the new version while I did not experience this in the Beta version?

FYI: I uninstalled the Scrivener 1.9 and the Beta version.
I am on Windows 10; Intel Core i7-10710U CPU @ 1.10GHz 1.61 GHz; Memory: 16 GB