I've recently flashed UD 2.5 onto my d1. After running Bugless for the past month I figured it was time to change it up. A few days in and I feel a marked improvement in the responsiveness and all around quickness in UD. I ran a quadrant benchmark and scored something to the tune of 200 pts. less than Bugless. Any idea why this happened? Is it normal for bugless to be sluggish but have higher raw performance?