Looking the same I would suggest to use LSMCD amd Redis with Ls-cache for better caching.
Also upgrade your php.ini to serve more max_input_vars ,Ram etc if using more plugins .
Serve image in webp along with cdn (There are a lot that give free tier try them )
Reduce Critical chaining of resources
Make sure you put less resources for TTFB then add lazy load ,and serve rest .
If you are on Basic hosting then doing it will give the best ,Go for better CPU based droplet to enhance performance based on requirements.