Super simple Bag Addon with no performance loss?

I'm looking for a very simple add-on that combines all my bags into one without using up too many resources. I’ve already tried Baganator, etc.—it’s great. But often when I get new loot or switch weapons, I experience minor FPS drops that bother me—I just don’t like the standard Blizzard bags.

So: I’m looking for a super simple add-on. All bags combined into one. No complicated sorting or filtering options. Does anyone know of one or can even recommend others?

Version: WoW TBC Classic