It sounds like you are deploying custom builds you make yourself with Visual Studio. I recommend you do not make any changes in mojoPortal code, if you do that you will not be able to upgrade without losing your changes.
Also in terms of performance, if you make a custom build, make sure you rebuild the solution in Release mode (not debug), and also make sure your production Web.config has <compilation debug="false"
If you deploy a debug build or leave <compilation debug="true" it will run slower because it loads all the debug symbols.
Hope it helps,