More importantly, I've tested the performance of several locations, all of which can have Time to First Byte (TTFB) below 450ms.
Okubaluleke nakakhulu, ngiye ngahlola ukusebenza kusuka ezindaweni eziningi, konke okukwazi ukuziqhenya nge-Time to First Byte (TTFB) yama-450ms angaphansi.