Performance issues with lots of entities

[Miepee]

I have a test project where I'm having ~900 entities and noticed a few performance issues. Not sure if all of them can be fixed, but I'll list them out here. Related: #8

• [ ] Opening the "Entities" makes the tool freeze for a few seconds
• [ ] Clicking on an entity/attribute/"new entity" in the entities tab makes the tool freeze for a few seconds
• [ ] If the room has an entity layer, clicking on an entity/placing one/selecting one makes the tool freeze for a few seconds (can probably for most cases be worked around by just splitting into multiple entity layers and allowing only certain tags)

For context, yes, I need all of the 900 entities for the project. Also specs: CPU: Ryzen 1600AF GPU: RX 570 RAM: 16GB OS: Arch Linux Version: 1.26 preview

"Try to use best GPU" is enabled in the settings.