As most lvl 50 players must have noticed, u have to run ak/cm an insane number of times to get ready for hm titan/coil. After running same location x times it becomes boring, and therefore everything is done to make each run take least time possible. Unfortunately this make ppl create insane requirements to join their farm party, like relic for ak/cm runs. It also encourages to exploid unplanned methods of clearing content, like old ak deathruns, just to save time. And such methods become "standard" way to run and then the only way.

Fix to this is simple. Make the number of tomes gained linearly proportional to time spent in instace, up to a maximum for standard amount of time required for this situation: all players being first timers, having minimal gear required and completing it as intended. Example numbers:

CM - 150 philosophy @ 70 minutes completion time
Praetorium - 200 philosophy @ 90 minutes completion time
AK - ~120 philosophy and 60 mythology @ 60 minutes completion time (philosophy based on time mark @ each boss)

If a player spent less than the estimated time, he gains less tomes, if longer the prize does not increase. Join in progress only takes time since entering into account, not since start of instance. However this time is counted x2, but not exceeding the time since the start of instance. This will fix players that try join in progress to leech last boss.