Splatoon like 2D game - Drawing Performance Issue

Hello Community,

I am currently working on a 2D Splatoon-like Game (or Battle Painters if you remember the game) where you have to color the ground with your color. Currently I am using a huge material and draw on the texture with apply(). For huge changes this is kinda a performance killer overall. Normally I apply the texture only if there are changes and I collect all the changed pixels and apply them once. To keep a good drawing quality the texture needs to have a "high" resolution. so that circles are like circles and not like squares

So I am not sure if this is the only way to create this kind of game. Do you have some experience or ideas about this type of games? Am I missing a major thing?

Thanks for any help!

 

when do it relese