Kind of slow, but the OP is talking about seconds in response time, something is going badly wrong. Software issues not CPU throughput. It doesn't help that IO is terrible, there is no point putting in a faster CPU without SATA and a bit more throughput overall.

They are in a great position for volume, so should be able to do better than the current choice that was suboptimal in so may ways. Not clear that the 64 bit stuff will be that cheap soon (plus porting code will take a while) but it depends when they are going to do something. Cheap is important.