Is it your only problem that your Computer is slow.? With what you have as security software etc, I am surprised that your machine has Not come to a full stop. What with conflicting Anti Virus ( AVG & MSE ) and possibly two Registry Cleaners (Advanced System Care & Hitman Pro ) it's is enough to sink a battleship.
I always advise against Registry Cleaners because, unless one is an expert in the field of IT, they can in the wrong hands, literally render a computer completely useless. So for starters I would get shot of Advanced System Care and Hitman Pro. A decision then has to be made as whether to retain AVG or MSE as your Anti Virus Programme.
In addition to an Anti Virus programme, it is advisable to also have an Anti Malware Programme.( Which perhaps is the main function of Hitman Pro ).. My computers are set-up with MSE which costs nothing and the free edition of Malwarebytes.