DoT kiting nerfed?

[Balamar]

Hello,

I have only been playing on the server for a few weeks now. I have a low leveled shaman that just received my first 2 dots in the game. The spells do not seem to be doing the full tick damage when the mob is in motion, but will do the full tick damage when the mob is stationary. For example:

Shaman - Level 5 spell - Sicken
When I cast this spell it decreases HPs by 8. The wiki states the spell will remove 2HPs from the mob per tick. If the mob is moving or running towards me, it will only seem to take off 1 hp.

Shaman - Level 9 Spell - Tainted Breath
This spell will decrease 10 HPs from the target once applied. Then every tick it will do 8 HPs damage per tick. However, if I am kiting something around, it will only do 5.

What is happening? Is this normal? It has been so long since I played the live game, but I don't remember this being the case.

Thank you for any insight you may have.