I still have doubts about the complete migration to 1.13. So I created a new profile and I just imported bookmarks from my old profile.
After that I deleted all Vivaldi (including the profile), I reinstalled Vivaldi. After all it was the same. I will not delay on the web content section. I react at the same time as click action.
When I return to ver.1.10 again, I can return to normal operation.