In games 60 fps makes the normal faster, even worse in turbomode it makes the speed spike. In lag it slows down. But in deltatime it fixed the issue and changes to the correct speed. Turn on turbo mode and try it yourself. Up and down arrow to move
Not many people use deltatime on scratch but i think this has great possibilities (: PROS: fixes, lag, higher fps speed and turbomode. Cons: makes, a not as steady movement, with out the comparison its hard to see.