Help with freeform pen tool

I am using PS7.

OK so i use the freeform pen tool to draw lines and things like that. ANd i've made ones like this



MY settings were just brush size 1, the rounded one [i think the first one on default.

I try to do the same on my other computer, however the lines are very sharp and ugly looking. BUt im using the same brush size as the other computer. And no matter what i do, it ends up looking like this --->

Does anyone know why? and what i should do to fix it?

Oh and it doesnt help even if i zoom in or anything


FIXED THANKS