Not in the Designer, short of a custom module.
It's on my list to investigate the apparent regression here, since nobody was complaining about this before, but no estimate on timeline.
The previous version we were running (8.1.28) didn't have this issue, but it became a thing after updating to 8.1.38.
The previous version had a ~2sec delay before the tooltip popped up, and it was offset by several pixels to avoid covering the cursor.
The latest version tooltip pops up immedietly and right on top of the cursor.
Hope this helps