Status Update: Finally after noticing lag in only one Client I went the route and safe mode my pc and test every single program that's active and in background while I play Maple. Long answer short: Aida64, a benchmark and Sensor Program I use for an Build in Monitor in my Pc case caused the Lag and Stutter. Since I always have it on to Display a Sensor Panel on that Screen to Read my Temps and Utilizing of CPU/GPU. I Don't know why it only affects Maple since every other Game is fine but that did the Trick for me.
