All these tests look good 🙂 considering nothing else runs on the respective server.
We should not get carried away by the fact that shared servers can have 500+ accounts with maybe 2000+ sites.
A high-speed 4-core or 8-core CPU can not compete with a 56-core system dual CPU as an example. as each client/request at a time can use 1 core. but then let's say you have 56 things to do at once 🙂 things can change dramatically!
I would suggest a thread on the forum regarding tuning the server services with real details/configs posted (MySQL, PHP, Apache etc.) for better performance, where we all can post configs explaining why some things can help or not. I am sure a thread like that would get sticky at the top of the forum.. (maybe a thread for each service) suggestion is for someone who is good at moderating and has good knowledge on the matter.