Brief freezes on every emulation

I've been using PCSX2 for two years now, I've changed my rig quite a lot in the meantime.
With all the upgrades I haven't found a single game I had trouble running at 100% speed, but there is an issue.
Every game, every emulation, while moving to other areas in a game or while game loads up new SFX, the game freezes.
It's like half a second freeze that happens and also ***** up the sound in the game. How do I fix this thing? Is it a global issue? I've even ran games with native GFX and without speedhacks. Absolutely nothing fixed this problem I had for this much of time.