Why Mantis is so slow overall?

[windrago]

I installed Mantis http://kywix.com/mantisbt/
and performance are very poor - from the simple load of the login page to the overall experience.

What can I check before I ditch it?
I have looked at other posts and I followed each of them in attempt to grasp what to do (turn off emails, looking for other things in the config)
and every try as resulted in no perf changes.

I will appreciate any help (as I have already logged a lot of bugs in the system and it's painful to move now...)

Thanks!

[atrol]

Seems that you use IIS?
I am no specialist for this, but comparing CGI and ISAPI to run PHP is worth a try