Enhancing DreamHost server speed?

Greetings everyone, as a novice, I'm seeking guidance regarding the compatibility of LiteSpeed with a DreamHost dedicated server. We recently attempted to enhance our website's speed due to its unsatisfactory Google PageSpeed score, specifically the low LCP score. We integrated the LiteSpeed cache plugin and connected to the QUIC.cloud CDN. However, despite these efforts, there has been no noticeable improvement in the website's Google PageSpeed scores. Should we consider leveraging the LiteSpeed web server in conjunction with our DreamHost server to koows maximize the benefits? Any advice or insights would be greatly appreciated.