MantisBT is slowing when report/ update issue

[pvenkat]

I have a serious concern with my mantis

Installed 1.2.6 (latest version) with windows installer.
I have around 30 users and more than 500 Issues in my DB currently..
But when I report/ update any issue Mantis performance is drastically coming down.
Tried the following things even..
1. updated to "mediumtext" for metadata/ body in table "mantis_email_table" tough its not working out.

But to resolve the above issue, I kept Email Notification in OFF but I can not move ahead for long run with this solution I need my developers to get notified on New Issues/ Updates on Issues.... with EMAILS (which is not possible now unfortunately....)

I dont have issue with Email sending

"mantis_email_table"Table is not empty everytime email goes to respective developer/ new user (when I raise an Issue or create a new account)

The only issue with when I update/ posting new issues then problem raises.

Could anyone please helpme out with the solution.

Thanks for your support in advance..

Regards,
Phani