Bug Launch character Node

Someone who knows what could be happening, I’ll explain I’m using the launch character to do a kind of dash, in the program everything works normally, the bug is when I enter the standard alone game or when the game is already compiled, the speed varies, in the video you can see the same force is being applied, this affects me since I need precision in the game and if it varies it would worsen the gaming experience, does anyone know what could be happening?