Add annotation to the performance sensitive methods

So we can evaluate more easily later if something can be optimized.

Also:
- Make ActiveUids a separated lock to reduce locking WM.
- Use more lock-without-boost for the methods that are already
  in another priority booster.

Bug: 122505787
Test: Boot device
Change-Id: I2e942b1f0b888e155f622ddbc850a481c0c88578