Are AddForce calculate different depend on CPU performance ?

Hi, i've get simple case, object 2d with rigbody2d. I want add y.force during hold space. All works, but when i scale force variables and rigbody grav. parameters to fly smooth its work different on preview with many tabs(games,scene,hierarhy,ect.) are open when game tab is small. Different works when i run game tab on full screen and play. With many tabs i cant even lift up from ground, on full screen force it's stronger. Im work on Mac so mby it depend from performance of my cpu. Where on full screen when other tabs are hidden work better and something calculate better.

I'm using Bolt Visual Scripting, add simple input on hold space to add force rigbody2d on +y(not impulse).