Page cache is not detected and the server response time is slow

[imjohnreynolds]

We have an error in the WordPress site showing this "Page cache is not detected and the server response time is slow"

Page cache enhances the speed and performance of your site by saving and serving static pages instead of calling for a page every time a user visits.
Page cache is detected by looking for an active page cache plugin as well as making three requests to the homepage and looking for one or more of the following HTTP client caching response headers:
cache-control, expires, age, last-modified, etag, x-cache-enabled, x-cache-disabled, x-srcache-store-status, x-srcache-fetch-status, x-litespeed-cache, x-lsadc-cache, x-qc-cache.

• Median server response time was 2,206 milliseconds. It should be less than the recommended 600 milliseconds threshold.
• No client caching response headers were detected.
• A page cache plugin was not detected.

& This is my site Fit Fast Race Gear

 

[LiteCache]

To do this, you need OLS, LSWS web server or quic.cloud to be able to use all the advantages of LiteSpeed. With Apache web server you can only use a few optimizations of the cache plugin for WordPress.

 

[Cold-Egg]

Additional information, here's the response header, the server is running with Apache currently,

HTTP/1.1 200 OK
Date: Mon, 04 Dec 2023 00:29:11 GMT
Server: Apache
X-DNS-Prefetch-Control: on
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate
Pragma: no-cache
Link: <https://www.fitfastracegear.com/wp-json/>; rel="https://api.w.org/", <https://www.fitfastracegear.com/wp-json/wp/v2/pages/15>; rel="alternate"; type="application/json", <https://www.fitfastracegear.com/>; rel=shortlink
X-LiteSpeed-Cache-Control: public,max-age=604800
X-LiteSpeed-Tag: 17b_HTTP.200,17b_front,17b_URL.6666cd76f96956469e7be39d750cc7d9,17b_F,17b_Po.15,17b_PGS,17b_guest,17b_
Set-Cookie: PHPSESSID=c6bc47eced6b5829e89ff4f7465ad79e; path=/
Content-Type: text/html; charset=UTF-8

Check LSCache tool: https://check.lscache.io/