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Ah I think I understand. Because of my friend's computer's faster framerate the physics act faster. I need to study is it possible to use "Time.deltaTime" in Construct. About solution 1. I don't know if there is that kind of thing in Construct. There is "physics"-behavior which might be the same. I need to check if there is possibility to modify calculation values. Thank you for your advices :) !

(+1)

That's exactly right! I think i've found something that applies right here. In construct it's also called dt as in delta time. according to the link everything is depending on dt already EXCEPT physics, which is odd. It says to use "Set Stepping Mode" physics action on start of a layout, and choose "Framerate independent." I hope this helps :) 

Thank you very much for your research! It helps a lot. It is strange that physics is outside of dt o_o. I will test your tip next time when I'll make physics based game or make improvements to this game :)