Do deadend and runecraft, it gives you more xp. It is working fine... lv 50... 4k xp/hr is pretty normal. You don't really get decent xp until very high up.
My levels are:
70 attack
84 str
40 def
78 hp
75 mage
67 cooking
And im not wearing any armor, cause you can only bind 2 things at lvl 50 right? i have argonite rapier bound and some shield. idr which.