enable mousetracking vs stylesheet hover

[Ini]

Hello,

i would need like two background-images on one QLabel while hover. It seems thats not possible in qt, so I need two lets say Qlabels on top of each other. Now i cannot use hover-stylesheets on the bottom QLabel. So I am thinking about to enable mousetracking. Does this eat much resources im comparison to the stylesheet-hover-effects?

(Making one image out of the two would be bad for the workflow if there are changes to make)

thanks