[pluggo] Multiple Pluggo VSTi's = poor timing?

hello

if i open any pluggo VSTi in Live 6.03, whether one of my own or one of cycling74's own, i can only get decent timing if there is only a single pluggo VSTi open in Live. 

as soon as i open another pluggo VSTi, even if it is not playing, the timing of all Pluggo VST instruments gets unusably sloppy, typically wandering by around + or - 5ms.

adjusting Live's buffer makes no difference, and its worse when a pluggo window is opened. 

is there anything i can do ? I want to open a few soft synths, but the timing is so bad when i use more than one of them.....
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