Monitor settings

[SlimxSteve19_PSN]

I’m a 600 to 800 player on diamond Dynasty and I would like to break out of that and hopefully make it to World Series one day
My monitor has freesync Premium and ELMB
Should I Use either one of these Or none at all Because I haven’t been using them, but I can’t get past Hall of Fame difficulty and sometimes I’m still slow on all, but I’m usually pretty decent on all star.