For small projects, it makes sense to add hover to components only, but for larger ones, you want to keep your assets clean with reusable components only.

Now when hover can be added to components only, a number of my "components" has raised significantly. This causes huge performance issues as well as organizational. (workaround is not to add hover, but what would be the point of the feature?)

I guess there is more than one solution to this problem, my suggestion is in the heading - give us the option to add states to groups.

Another thing that could help would be the option to group our components and other assets (pleaseeee), but that would not help with performance issues.

On the other hand, you should work on performance when there are many components included, since not every project is simple.