Stright to the point i have 150 hours in the game so far, hit 187 ascended.
1-optimize the game or remove traits like increase healthglobe spawn, mark of impurity modifier that causes load of explosions because these skills along with many seems to cause server lag/crash.
2-alot of skills are laging what ever sad server you are using.
3- restrict trading because its ruinining the economy( you can find trail belt on websites like g2g for 90$ and that leads to p2w situation)
4-there is a problem where the game randomly disconnects on 160+
5-it seems that the server cant keep up with our actions as we see the results of our skills after almost 20-30 seconds. it feels like we are overloading the server with all the numbers,kills,spells,etc.
6-as of right now the game is extremely not balanced. the only way to play the game is to stack ailments on mobs and pull mobs to boss in order to kill.
7- in order to get the trail belt there is an exploit where 2+ ppl find the shop, the host stays afk while others keep logining back and forth refreashing the store till they find the belt.
In summery
these are few of many many problems with this gem of a game that needs to be really polished, and the main priority right now is fix the servers because its unplayable unless you go offline, economy is dying, and there is few viable builds right now.