Monsterhunterrisehit....ct Link

In Monster Hunter Rise , hit effects include the visual flashes, blood (if enabled), and the "hitstop" (momentary freezing) that occurs when your weapon connects with a monster.

It seems you're referring to (or possibly "Hit Stop" or "Hit Lag"), which are visual and physical cues that signal a successful strike. Understanding Hit Effects in MHR MonsterhunterRiseHit....ct