If you have a powerful gaming rig just like me (powerful and healthy parts CPU, MOBO, GPU, RAM, PSU, SPU, HDD), and you still have micro-stuttering despite having high fps, I suggest you to check if you are experiencing input lag by USB keyboard/mouse.
Go to device manager and disable HID for mouse, keyboard and for everything else having HID that you see there, you should still be able to use your keyboard and mouse but, all the special keys in your keyboard and mouse will be disabled like volume control, quick access to calculator, quick access to web browser, etc.
Next step is to make sure you only have one language installed in your keyboard, you probably have english as default but, you might also have russian or something else, make sure its only one.
Try your games and see if they stutter again.
I was having a very weird and random micro-stuttering issue in almost every game, I went crazy trying to figure out what would case those annoying micro-stutters till I figured out it was just the input lag.