Personally I don't experience much lag in AK or WP for that matter or even on the Repel part. But does happen once in awhile. I would say 5% of the time. Not sure why others get much more lag sometimes.

Lag issues may be tied to hardware not just ISP or SE Server so posting rig info might help.

Best lag story in AK. I was running to the boss after getting repelled. Next moment I was falling and then dead. I thought repel knocked me off somehow but according to my teammates they said I simply jumped off into the sides. Crazy stuff lag can do LOL.