The Psychology behind your UI

Intro:First off, this is going to sound absolutely insane; I discovered this from my studies & personal experiences with performance in dungeons/raids. I play a holy paladin, and use the standard Blizzard grid - I moved server and changed my race. I assumed that was what affected my healing - I was wrong. It was my UI entirely, and I discovered some psychology behind it.What was wrong?I was using the wrong side of my brain to play. Seriously.What does UI have to do with this?The

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