Forearm extended wrist USX has increased speed while exposing other issues

I’ve been experimenting with a forearm-based (and possibly wrist-assisted) picking approach using DWPS and upward escape motion. It’s definitely helped increase my speed overall, but I’ve run into a few issues that I can’t quite figure out: 1. Ascending lines feel noticeably slower, sloppier, and noisier compared to descending lines. I’m not sure if this is a mechanical issue or just lack of familiarity with the motion. 2. High E string playing feels especially inconsistent — slower, less accurate, and generally harder to control. It’s almost like the technique changes completely when I move to that string. Fast passages that involve the high E feel like a gamble, so I often avoid them when playing live. 3. String noise tends to be more noticeable in ascending runs than descending ones. 4. Starting fast lines feels awkward or stuttery — the first few notes don’t flow naturally until I “lock in” to the motion. This seems to happen regardless of the picking approach I use.