Movement prediction bug

I just saw a useful video on what settings you can change to improve and i saw that you should use movement prediction. So i went into training, enabled the movement prediction, but then i realized its completely bugged. A lot of unnecessary lag/bug movements where the character moves in between commands, i've googled it saw a lot of people experienced the same, but im wondering if there is anything i can do to fix it or should i just live with the fact i wont be able to use it until riot fix it