Your PC uses 60w idling? Is that with screen? It's not too much in that case. CPUS and GPUS have gotten a lot better at idle power consumption, and PSUs are also quite efficient these days.
[1] https://hardforum.com/threads/killawatt-owners-whats-the-idl...
Allow package-C6. Turn on PCIe power saving stuff.
There is a bunch of stuff that mildly hurts performance and greatly improves efficiency in intermittent workloads, by letting hardware sleep/power-off when not needed.