I think you got the wake up problems because of the bug I mentioned a while ago, seems like on some devices zen decision gets stuck on one core only after changing from mpdecision or msm hotplug. Maybe I'm wrong, but I also experienced a noticeable lag both during use and wake up. If you want to use zen decision, you can fix it by selecting governors again after enabling zen decision, it will solve your problem. But maybe you experience the other issues that I mentioned too, which makes the hotplug unreliable, in that case its better to just switch to MSM. I've been using it for some time and i get a good balance between performance and battery life. Same issue on uber 7.0 version, no difference. It's your model by any chance a 2014813?
Thanks for detailed info. Nope, my phone is 2014817 version.