When i change settings fantastic to lower the player moves quicker ? [help]

Hi all, i have a problem because when I change the settings from higher to lower the player moves faster ? like when i put settings to lowest i get like 800fps and the player moves really fast like i have no idea why its happening ?
[To move player i use rigid body add force if that might help when i press up/down/left/right it adds force ]

Thanks for helping!

i think i fixed it i added ‘’* Time.deltaTime’’ after when i add force to move and increased values from 20 to 2000 and on any setting it moves at the same time did i do it right :? or there are any other better ways ?

edit1
Also changing code from Update to Fixedupdate fixed the problem