PHP running 3x slower on Ubuntu 22.04 fresh build. Identical hardware

So AS per the title, I have upgraded an ubuntu 20.04 server to 22.04 and have since noticed a big increase in the PHP processing time.

Has anyone else come across this? or have any recommendations I can follow as I was hoping an upgrade would at least maintain performance not decrease it.

I am unsure why an upgrade to an OS with the same PHP version has caused such an increase in script processing time.