Not sure what performance issues that are occurring, but I'm using a Lenovo R61 with 2 Gigs of ram. Once I set the USE Internet option to No, I noticed a increase in the updates in the Information window as well as the load time of the program from a cold reboot of the system. It took the program about 74 secs to fully load. Once Logos 4 was load I performed a Sync Now. Hope this help with the performance.
I'm curious to know if this helps or not.