Luckydog, Ive only been RVing for 1.5 years so you will probably get more experienced responders, but what I think I know is this;
Some RVs have pretty small water supply lines. I believe this is intentional to help the camper keep the water usage down when dry camping, etc. You may also have a built in pressure regulator (which most everyone should have) that may be contributing to throttling the flow. Take a look under your sinks at the diameter of your water lines. Personally I just think itís something you get used to. I changed the shower head in my first rig and gained some improvement.
My present rig is not too bad but itís not like the house.
If you have a manual for your rig, it should have a section about sanitizing the fresh water system. This would be the first place to start. Check your heater element while youíre at it. Theyíre not all that expensive as I recall.
2016 Sightseer 35G
Ready Brute towbar.