I thought the same thing @Effington as what @b101 stated above. If you care about it, you'll do fine. It's the folks who are either oblivious or pricks about it who cause many of the issues.
Keeping pace and most other etiquette issues are important to me as well. When playing a solo round I have no problem keeping up with faster twosomes in a cart - and I'm a walker who doesn't score low.
For me, the biggest issue is looking for lost balls. On a crowded course, I'll quickly do a fly-by where my ball may have landed. If it doesn't stick out like a sore thumb, I'll go play my provisional.
Ready golf, ready golf, and again ready golf. Tee box, approaches, chipping, and putting, play ready golf. You can be concerned all you want but if you play honors and no one is ready to hit, you'll inevitably slow down too much.