I sent you the pm.
Like I said the zlib will improve other processes but not this issue.
also on optimizing, there are like 64 tables.
I would start with any table that has topics or posts in the name. They probably are the largest tables and the oldest data.
If one of the tables bark back you may need to run a repair which can't be done from ubb but from the mysql console.
also before a repair I would make a backup of the database.
If it were me I would close the board during optimizing.
But the caveat is the posts tables are probably on the large side and may take a long while if they are cluttered with trash.
it runs fairly quick if nothing needs to be done.
Last edited by Ruben; 01/18/2017 11:12 AM.