Earlier this week, SqlSmash 1.0.4.0 was released with some performance improvements and bug-fixes. The biggest improvement was that SqlSmash now caches the object metadata for your servers. So if you work with large databases, it’ll build the cache the first time you connect to a server, and just update the cache in the future (as needed) when you reconnect to the server. This means that the startup time is now much faster than before.
You can check your version number by going to SqlSmash->About dialog.