The complete guide on how to remove stuttering caused by the Power Limit Throttling on Asus TUF FX504GE (i7 8750H with GTX 1050Ti variant) Notebook by undervolting both GPU & CPU.
they have released the fix for the stuttering with bios update (312).
If you've updated to latest bios version (312), the problem is gone, what they do is they "nerfed" the GPU so its throttle all the time so its never reached highest clockspeed so you're not running at the full potential.
FOLLOW THE INSTRUCTIONS CAREFULLY & DO IT AT YOUR OWN RISK! I. EVERY FIX, HAS A RISK, YOUR ERROR IS YOUR RISK . IF YOU BLAME ME, I WILL LAUGH AT YOU.