how *big is Ur chatbox? Da reason2 get high load I can think of is spams & bad coding cause memory leaks, but usually wont take alot resources unless U r sayin Ur users r alot, U can write a chat room to store sessions onda server wv maximum conversations & flush everythin over tat, so tat Ur chat room hv no transactions wv Ur db unless U wan them2 save into history U can just dump into text files & read from ther

simplest solution find another chatbox