Wanted to follow up on this thread. We are using LD 9.5 SP2. This still appears to be an issue. I have used the above fix on a few other mac with positive results. We recently purchase new Mac book pro with os 10.9.4. I have also run the above fix. It appear if we are not doing anything on the macs then it stay low cpu not to impactful. I have noticed that when transferring large files or installing software that it spike above 100% cpu. Once the copy is complete it calms down. I know that the AV scan will pickup because of file coping but it seems to cause the machine to be unresponsive and the fan on the laptop goes crazy. Also it kills the battery too.
LD is there a hot fix for this yet?