My project runs well, but putting it into presentation mode makes it far laggier. Nothing changes but the size of the screen, so why is this/how can I prevent it?
Can you link to your project?
First, if you’re using SVG it will have to render more pixels (to look more high-quailty) which will decrease speed. Second, it’ll overall have to render more stuff. Even if you ARE using bitmap sprites, it has to scale those to the new fullscreen resoulution.
It’s just all the projects, really. The complex ones anyway.