Best video I have watched that increased my Affy DPS is Malefic Grasp by Yipz This is especially relevant for you Pvw as your drain soul uptime in all UA ticks is really really low.
Be sure to watch all of this guys videos. Stuff pre-7.1.5 though will be without MG so bare that in mind if you go back further.
If you check Terryn over on Youtube he also has several video guides as well which may be a better format for people than the written one here.