long distance commute

[HLaB]

i have a 20km each way (ie 40 round trip) ride.
i do it in about an hour
looking for tips to go faster , and also regarding luggage!
and also regarding how to balance it with rest of life , since adding the shower and changing clothes it adds up to 1.5 hrs each way , and my legs are always tired , so not sure how to optimise / improve...
i have started getting off the bike to run with it on some up hills just to have some variety!

You are going a reasonable speed if you are lugging stuff (laptop, change of clothes, towel etc) have traffic and elevation etc. For a similar distance I think I was 45-55mins but I was only doing that once to twice a week and wfh for the three other days. On my longer flatter route probably with a tailwind the best average estimates 40minutes for 20km. If I had been doing my old 20km commute daily I'd probably been more like 55-60mins. I was on a fully guarded aluminium road bike with lycra, and I preferred my luggage in a back pack as it was more agile, so quite fast set up.