Mobile shell was the firs thing I installed on my mogul and it killed performance. Tried wisbar next, same issue. Now I'm using HTC Home plug-in and aside from the rumored memory leaks it's working very speedily. I also found that a custom today background killed my performance. Put it into a tsk file and i'm zipping a long.

Well, you can have your apps or you can have a phone that isn't slow. They're slow on every phone. I've read this exact same thread for every PDA phone I've ever owned. The T-Mobile MDA was a slug, even overclocked, when spb apps were installed. The SX66 was slow when they were installed. The Treo is slow with them installed. You can go out and get another phone and as soon as you install the spb apps, it'll be slow too and the only difference is you'll have someone telling you this exact same thing in a different forum. If you buy a new computer and install software that slows it to a crawl, do you write the computer manufacturer and complain about how the computer slows to a crawl when you install this software or do you write the software company and tell them their stuff sucks? Why would this be any different?

Ya I did the wisbar advance dxesktop and it killed my performance. I stay clear from all those things! I remember I did the iphone theme which worked good but just terribly slow...