Demul Vsync ON/Off choppyness

[Dacasks]

Hi. Sorry for making my first post asking for help but... Recently I swapped my Gpu to a Radeon HD 7870 and when I use Demul, if i turn the vsync off, the frame rate becomes really choppy. Vsync turned on  runs smooth as the real deal, but with a really noticeable input lag.
I have a Naomi Board and I can confirm that for some reason the system already has a quite noticeable input lag. So the original lag + the vsync lag makes it almost unplayable.

Already tested with a Radeon 7850 as well... same thing.

I bought this new board just for Demul, and now this... wondering if there's anything I could to turn vsync off and have a smooth experience (albeit with tearing and everything) Other stuff runs just fine.

Thanks in advance. If I could use the opportunity, always wanted to say that this project is one, if not the most, cool thing regarding accurate emulation.

[Dacasks]

Well, nevermind... after much poking discovered that Demul 0.582 works better overall with the driver.