Maybe filters for the bundle (like top rated) since we own the bundle rather than a copy of the games.
It's a bit cumbersome to have to push next page 30 - 50 times depending on the size of the bundle.

Maybe even more pictures and less text to the right?

Perhaps "owned games" can search through bundles as well?

This has been a thing ever since the big bundles came out. I don't think we've received much word on all the issues related to bundles (even though they usually bring an enormous influx of people to Itch.io.)