Painstorm Studio for Mac- using Trial version right now.

[MichelPM]

I''m using PaintStorm Studio on a late 2009 iMac with 3.06 Ghz CPU, 256 MBs VRAM, 16 GBs of RAM running both OS X 10.8.5 or OS X 10.9.5.
PaintStorm Studio lags,delays and stutters if I set a large format canvas (ex. 12" x18" or 12" x 24" size canvas) to a print resolution of 300-350 DPI/PPi.
If I set the resolution lower (225-275 DPI/PPI) this lag, stutter and delay goes away and eveything seems fine.
Is there a resolution limitation in the PaintStorm TRIAL version that goes away when you purchase the full licensed version?

[support]

Trial and the full version is the same. You have lagged due to a low video memory.