The database where Sessionbuddy stores the sessions data is very bloated.
I had a lot of automatically saved sessions since more than a year, and recently I've deleted them all except for the 3 more recent ones, which together with 3 or 4 manually saved sessions with not that many tabs in it, make for all my sessions, but the database still occupies 167 MB, the same size before I deleted some 100s of automatic sessions.
In other words, there's 0 optimization and the database will just keep growing.
Please fix this, I made a backup of all sessions (the gear menu in sessionbuddy) *after* the cleanup and the resulting file only has a 19 MB filesize, almost 10 times less the bloated database