Reduce DNS Lookup & Connection time, total 400ms is taking too long (especially from outside US)

SiteCatalyst is very nice tool, but it's sometime rather slow in beacon response.

Here is a screenshot from Firebug connection log.

SiteCatalyst's JavaScript beacon is consuming visitor's browser load time like:

• 100ms for DNS lookup
• 150ms for connection
• 150ms for 1st byte response

total 421ms for tracking, where Google Analytics is only using 31ms.

These days, visitor's time = money.

They say:

• 500ms increase of latency brought Google 20% drop in traffic and revenue 
• 100ms increase of latency brought Amazon 1% drop in revenue
• 5s decrease brought Shopzilla 25% more PV, 10% more revenue
• 1s decrease = 11% more PV, 7% more conversons, 16% more customer satisfactions (link is PDF)

Omniture's products are to bring more revenues for their customers BUT, its slow response time is DECREASING their PVs & revenues, isn't it?

When I want to decrease DOM-ready time down to 2s, SiteCatalyst is cunsuming 20% of those time, and it's too long.

Please cut those time down to like total 100ms, especially DNS lookup time from outside US (it sometimes takes more than 150ms!).