Okay, after some problem with loading the optimization on pa, I finally installed it successfully without bootloop.
I did some comparison side by side:
Phone 1: PA 4.4.4 +elementalx + dalvik optimization
Phone 2: stock rom + elementalx + ART
I did a simple test by loading up chrome and settings. I then click the recent apps button, and click the 2nd last app to quickly switch between chrome and settings.
There's some lag and stuttering noticed on phone 1 while phone 2 is just smooth.Phone 2 had loads of apps in the recents as I didnt reboot it and I've been using it for the whole day. Phone 1 is just booted and there's no other app in recent.
Loading up apps seems the same speed but phone 2 is faster when going back to home from an app.
Anything I'm missing here? And I doubt I could ever bring myself to accept dalvik when I've experienced the speed for ART. Gona have to wait till xposed is compatible with art i guess.
Till today I have never even bothered using ART as my settings and optimization blows ART out of the park