One app that I would not recommend, based on the number of complaints that have been posted in this forum and elsewhere, is CleanMyMac. As an example: CleanMyMac cleaned too muchIt's not free, but CleanMyMac does a nice job. A free option, although it's not the same, is Onyx.
I wouldn't recommend AppCleaner, either.Try using AppCleaner when you want to get rid of software to keep things clean.
One app that I would not recommend, based on the number of complaints that have been posted in this forum and elsewhere, is CleanMyMac. As an example: CleanMyMac cleaned too much
CleanMyMac, AppCleaner or other app removal software will not make a Mac run faster. They only free up some (not all) of the disk space used by apps.My experiences with it has been okay, but yes, that's probably something the OP needs to consider if they're going to choose it.