Yep quests rates are fucked up. This server is made for clans and CPs there is not much a solo player can do. The only way to play it solo, is to have 3 boxes train (wc, sws, bd) and play some melee class like tyrant or destro.
As you said, kama/laba for lower levels are almost impossible to do. Not enough low level players. It is like a train and if you missed in on the first days, now you are behind everyone else and no new players are coming to balance everything. So you either have to find a clan somehow who will invite lvl 40-50 support that has no use this early in the game or you find another server.
Mages are waste of time here also, mana herbs drop rate are like 1/100. So without boxes it is 5min exping, 10min resting.
So to sum up if you want to play solo, prepare to have a train of boxes because there will be no one playing with you on low levels.