Slow Performance

[gmata]

Hello guys,

In the past couple of months i have been experiencing extremely slow performance in my forum.

http://pistolerosdelmar.com/forum.php

I do not remember doing any changes that caused this, it just started to take forever to load the pages.

I contacted my hosting server and they say i need to buy a independent server for the forum.

Just curios if anybody know how can i speed up the speed of my forum it is painfully slow, i only have 550 members but alot are leaving because it is too slow.

Should i change hosting companys? what are you guys currently using and what plans?

I am using TMD hosting.

Thanks for the help in advance!