help plz

whenever i start a scar script it will run in the game but will ussually make the game start lagging out and running in clips. sometimes it freezes the whole thing and i have to restart it. ne idea how to fix this?

 

get a better computor, or alt+ctrl+delete then click the porcess tab right click on SCAR and change the priorty I suauly change it to high and my browser to above normal and my lag goes away.