flexi auth - A user authentication library for CodeIgniter

[eluser]suthan[/eluser]
I've been using this library for quite a while, it's awesome.

What would be the downside of using the native sessions instead of database? I've had so much trouble with the `ci_sessions` table, it's been soo slow, for each insert and update. I've tried so much fixes, but in the end I gave up. So I tried running the library on a native sessions, I haven't seen anything out of ordinary yet, but if you can let me know what would go wrong that would be great. Thanks and keep up the great work.