We have done all sorts of modifications, however, the TFFB for seems to be about 3-3.5 seconds out of a page load time of 7 seconds.
Refer the bottom of attached screenshot. The long grey bar(HTML) takes 2.5-3 seconds to process - while every other resource is under 200ms. This grey bar has been consistently very longer than the rest of the page since forever now.
I have no clue what could be causing this to happen, since:
- It’s a SSD VPS.
- Resource utilisation is under 10% for the server.(CPU, RAM and disk)
- Caches(server and client side) are properly implemented.
- The test location is barely 300 miles from the server datacenter.
Any help would be appreciated.