First and foremost, you need to completely uninstall Magician. It's garbage, and it may very well be causing your problem. If you're reluctant to accept that it's garbage, take a look at the results of my recent anti-virus testing, which included Magician's "anti-trojan" feature:
http://www.thesafemac.com/mac-anti-virus-testing-2014/
Note that it detected one - yes, one - out of 188 samples, despite promising to protect you from malware. If that's not the very definition of "scam," I don't know what is.
Make sure you remove Magician properly, using whatever uninstaller is provided by the developer.
Once Magician is gone, you also need to stop clearing RAM. Mavericks (Mac OS X 10.9) does its best to fill your RAM, because empty RAM is wasted RAM. Clearing RAM removes cached data from RAM that your Mac can reuse for improved performance. Your Mac will work better if you stop throwing roadblocks in front of it.
If removing Magician and leaving the RAM alone doesn't fix the problem, try the suggestions in my Mac Performance Guide.
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