Transaction Rollback Performance

[eluser]comex[/eluser]
The reason as to why its not implemented in the model is that the model only handles single queries(which works well for everything else except this specific application).
This is part of an XML-RPC server that gets quite a bit of data and then submits it to the DB.
But I think I've gotten rid of the performance glitches now.

Thank you for your suggestions!