I'm right now at path 600+ and i'm killing monsters 15lvls higher than me. Still get shit xp. I feel like the game doesnt want me to progress. It takes too long to progress now...
Keep trying to move forward, throw in some right clicks, use rage and health potions, etc. Make sure to take some health DBs, and have your gear upgraded and imbued and you should be fine :).
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We upped it back a lot in the newest patch and reintroduced the right clicks in a different way. Hope you enjoy.