Well to be honest, 100 xp on Gruntt was perharps a bit too much.

Thanks to him in two days i leveled up twice from level 23 to level 25. Right, the decrease may be too much as it is now, but if it is not a bug but intentional i do understand the reasoning behind.

I suppose there are balancing to do in the game both to prevent speed gamers to complete the game too fast and avoid the slow one not to move forward at all.

As they say in my Harem, Wet and Sea ^^