Rapid fire scripts screw up when shift is held

[Ouza]

Alright ive been trying every single little script i can find for rapid fire and Shift (my sprint key which is held frequently) always cancels this out. Sometimes it seems like if i press a key right before clicking (wasd for example when moving) completely pauses the script untill i let go of the key. Im using the fal and this SUCKS when i come face to face with someone and cant shoot the damn gun because of it. Anyone know a fix to this?

[Nap_Time]

Turn off sticky keys.

[akko]

Get a better scrip - for example the one posted here or edit the one you have.