You can add the styles drop down to the toolbar (rather than menu system).
You can assign styles to keyboard shortcuts so you never have to touch the mouse/menu/dropdown (as taught in
COMP)
You can use two monitors. The primary should be something great like an Eizo, but the second can be a cheap monitor just for thumbnail and tools and menu.
You can reorganize the styles into fewer subfolders.
By the way, shameless pitch for our
DT Capture One Styles Pack which takes full advantage of Capture One 9/10 skin tone tools. As far as I'm aware they are the only style pack made that leverages those (glad to be corrected if anyone has an example of another).