I agree, the current system is trash. It just comes down to going FAST FAST FAST FAST so that you can do the same dungeon X+1 times than you did it yesterday or else you're wasting your time.

I would, personally, prefer a system which doesn't reward SPEED, because no matter what happens, what new changes are made, it will ALWAYS be about completing content AS FAST AS POSSIBLE which will leave slower and newer players behind.

Honestly, I think they should just put a limit on how many tomestones you can get PER HOUR. 100 per hour. The end. And that's it. Speed runs are dead. People take more time to do the dungeons, stop ruining it for people who want to watch the cutscenes, AND you have a consistent rate at which tomes are earned without touching how much the dungeons give.