Very slow ttfb even when using default configuration of lscache plugin.

[John-belt]

Hi, I am using lite speed server with ls cache enable. When the cache is hit ttfb is good. But on the first try it is very very bad as compare to no cache plugin: without lscache plugin: 800 ms with ls cache plugin default setting: 4.2 seconds(almost tried 5-6 times)

How to resolve this?? i have not even started the optimization process still it shows very bad result consistently?? Running vultr high freq server.