PHOTOSHOP vs LIGHTROOM EDITING ISSUES

In doing the Hawk Picture nearby, I sadly was reminded of the differences between the capabilities of two packages.  Lightroom version 3.4 was announced today.  Don't know if it solves this problem.  It wasn't obvious in the press release.

Here is the first image of the hawk, done the deliciously quick way using Lightroom's adjustment brush.

BUT... there is a catch...Using adjustment brush in Version 3.3 adds the hideous artifacts below upon close examination, especially if you need to go toward the midrange of tones or further.  Completely unacceptable performance.  I HATE HAVING MY TIME WASTED.

This was edited using CURVES in PHOTOSHOP CS5

Here is the closeup.  Major difference.  San Jose, we have a problem.