There's an old saying that if you want something, you can have it fast, cheap, or good - pick two. You never get all three at once. That's applicable to poker on the PSP, which always seems to come with some compromise. For Stacked, it's cheap and good - but it ain't fast.
The oft-delayed Texas Hold 'em simulator definitely looks sharp; its crisp player models and smooth player animations hold up well compared to its PS2 counterpart. And while poker games usually suffer from lousy voice ...