There are big games that move seamlessly, there are small games that lag.
Being optimized for many systems is the whole point.
Unity has limitations in GUI - it needs whole code packs for what Ren”py engine has built in.
Unreal haz huge requirements on the space and good allocation of renders from GPU and CPU.
A badly optimized demo might be unplayable, while a smaller optimized game might just fly.
Every game needs to decide what it aims for: hunting for hot scenes, doing minigames,
working on chores multiple days/weeks to progress minute increases in stats every now and then.
Working with finite characters one may find countless reprezentations of, both fan fic and
comics / tv shows / movies .. this presents a golden opportunity to jump straight into the action.
Sure hope this game gets optimizet to the version that works well with a good plot progression and action, titans are all about the action.