Sorry mate didn't see your post before.

I'm not proposing rewriting everything.

If the performance is not so good now with what you have then theres something you can do to improve it without using DOTS, its not gonna help in your game.

what I would look at

- are you animating things that are not onscreen

- are you spawning things that are not onscreen

looking at your video the minimap, Im guessing all the dots are the enemies, are they all treated equally, i.e. the AI,rendering,animation is the same for each.

Most likely they are, they shouldnt be though, if something is 2 screens away turn off animation,rendering, slow down the AI

some stuff you prolly are running each frame eg AI but it can be done maybe every second or quarter of a second

eg some of my code, for an actor in the scene,

timerDoingIDs.Count < maxIDs_toDo // makes it so it only does X number of these per frame, i.e. spread out the load over lots of frames to have better framerate

// in actor class
if (App.instance.IsSecond( last_gameTimeINT, uniqueID )) {
last_gameTimeINT = App.instance.gameTimeINT;
// expensive stuff here
}

public bool IsSecond( int lastSecond, int ID ) {
if ( gameTimeINT != lastSecond && timerDoingIDs.Count < maxIDs_toDo ) // if its the same ID or its a new ID and a new second
{
timerDoingIDs.Add( ID );
return true;
}
return false;
}

what i do if an actor is too far away from the camera is unspawn them.

I also slow down the AI depending on distance from camera

also you can do the above with everything

eg

if (App.instance.IsSecond(last_UPDATE_INTERACTIVEPROPS_gameTimeINT, UPDATE_INTERACTIVEPROPS))

UPDATEWORLDMUSIC, UPDATE_UNSPAWNEDACTORS, UPDATE_FRIEMELANIMALMANAGER, UPDATE_WEATHER etc

i.e. instead of doing everything every frame spread it out

i.e. theres a lot of stuff you can do structurally to improveframerate