I use a booster called JetBoost. It has three setting ( for work, for game and custom ) that has been working great for me. With the custom setting you decide what apps. you want to disable. With Iobit there are no options. You can download it by itself or you can download the JetClean system which is a very good system cleaner and has the JetBoost loaded in it's tools tab. Another tool I use after the JetClean is called Free Registry Defrager. It has no setting to deal with. You just click the Analyze Registry and it will tell you if the registry needs defraged or not, if it does then you just click the Compact / Defrag Registry button.The registry gets fragmented just as the hard drive does.
Just go to www.bluesprig.com and check it out.
This is the address for the Free Registry Defrager if you want to check it out.
http://www.registry-clean.net/free-registry-defrag.htm
Just some alternative suggestions.