Boosting your mobile phone is a special technique for every android user. Actually, this term is directly related to RAM and ROM. If your mobile RAM is high then you can you can do it easily.
But from my point of view, you should use some app to clear RAM for your phone.
As an example, Ccleaner, RamCleaner, Appcleaner etc. all the apps are really good and working fine.
For these apps , at first you have to download theses apps from googl play store.
After that you can use it in your phone and clean your PC.