lsd daemon 117% CPU

lsd in OS X is the LaunchServiceDaemon. launchd is a launch daemon manager! It provides probably the same function as in iOS. According to Apple, it provides support for launching apps and matching document types to apps. As a result, the keys recognized by Launch Services allow you to specify the desired execution environment for your bundled code. You might try rebuilding its database:

Rebuild LaunchServices Database

Open the Terminal application in your Utilities folder. At the prompt paste in the following command in its entirety:

find /System/Library/Frameworks -type f -name "lsregister" -exec {} -kill -seed -r \;

Press RETURN. Wait for the Terminal prompt to return after which you can quit the Terminal.

Use Activity Monitor to Kill Runaway Processes

Use Activity Monitor on your Mac

Runaway applications can shorten battery runtime, affect performance, and increase heat and fan activity.

Kill the process using Activity Monitor. Then rebuild the database. Restart and see if the problem is fixed. Perhaps lsd is trying launch software you have that is causing the problem. If this doesn't help then navigate to the /Home/Library/ folder. Look for anything with "com.apple.LaunchServices." in the filename. Select them and CTRL- or RIGHT-click on the selection. Choose Move to Trash from the context menu but do not Empty the Trash. Reboot the computer and see if the problem is fixed. If it is then Empty the Trash. If not the open the Trash and put the two items back from where you deleted them.

In case you don’t know—ASC is a user to user discussion community. Apple’s only occasional participation here is by employee moderators, labeled as such. Feedback links (page bottom) to Apple are here:

Contact - How to Contact Us - Apple

Kappy, who’s a fellow user not an Apple rep, is trying to help you sort your issue. He/she’s very knowledgeable.

Gee, then why haven't you managed to diagnose your problem. Use the time you were writing your remarks to me. File a bug report and be useful.