You could use the BYOS option on FC where you add your server to Frappe Cloud and control the entire resources. That’s an option if you’re already on FC. You can talk to Frappe customer care about this option.
Speed is really great, I have a high traffic wordpress website, ERPnext, N8N, Redis, Mariadb Server, Postgres Serveur, wireguard, and more all running on docker at the same time. I haven’t had any performance issue at all.