Extremely slow

I’ve noticed the my wordpress installations have been running EXTREMELY slow these past couple days and sometimes not even really loading.

I’m running the latest stable update. Haven’t made any changes or added any plugins.

Please advise.
Hm, seems like I was on php 5.2.x…not sure why.
I’ve changed it to the recommended default.
Seems to be a better now.

Does that affect speed?


I found this article that might help shed some light: