if you don't charge by the hour the script quality goes into the trash because the authors are like: "lmfao i got enough purchases, i'm ditching this boat now cya losers bye bye updates"
the stuttering is a runescape 3 issue, just restart runescape and don't cut in a laggy area
also it might seem kind of obvious but some people don't turn their settings to min, so if you haven't done so, do that