Ah, if you are loaded up with character sheets, then that does make a difference. The maps shouldn't be too bad unless you are pushing the file size limit on a bunch of them. I'm not sure there is a vtt that won't require you to load all your assets on game open. There is a way around this on Roll20 with a subscription though. Since I have the pro subscription with access to the Transmogrifier tool, I keep my bestiary in a game of it's own, have an npc holding game, and also a map library. So my active game only contains things I think I will need fairly often. A Plus account wouldn't be able to move maps easily, but could still have a bestiary game and move things as needed through the Character Vault . I don't know what game system you are running, but be careful about how many spells you add on if it is something like 5E or Pathfinder with fairly data heavy sheets. Every spell you add generates quite a few attributes, so it is best to just have what is commonly used for divine casters instead of the whole spell list.