Pointer to plug-in for page render time?

My website performance has recently gone in the tank. As blogs go mine is not very large – database 1.3MB total 1400 records [database records not posts]. It takes bloody forever – 15 – 50 secs to get a page – and edits of pages, while they post the topic, often simply return a blank page and “done” in the browser without going back to the page.

Windy Weather Blog

The hosting site support has been asking me to “fetch rocks”….
(1) Do a tracert… – All other sites such as Yahoo, Google are just fine for performance.
(2) Optimize your database… With only 1400 records and 1.3 MB even a messed up database optimization couldn’t be that bad. Of course no change in performance after the database was optimized.

Next I would like some sort of plug-in or addition I can make to my pages to show their rendering time and maybe database operation count or other database statistics if possible.

Do we have a page statistics plug-in for WP? Not how many time a page has been hit, but how long did it take to render the page when it is hit.

BTW – my home page html source is only 37K bytes. So the rendering times is not some CSS size problem. I guess my theme is quite simple.

I use the following Plug-ins:
Adhesive, Captcha, IImage Browser, In Series, Solvent, Google Sitemaps, WordPress Database Backup.

Thanks much,
Windy