@pranit.bagul1988 For me the opposite is true (even without factory reset) and not only in terms of performance, but it looks like I am in minority in this forum. Probably 9 threads from 10 are about strange issues and glitches. Sometimes I feel that some other phone than my phone is being discussed because my experience is completely different.
Strangely, even those who have installed virtually no other applications often complain, but MiXplorer shows me that I have installed a total of 440 applications (system and user).
On the other hand I do not use almost any Asus applications, I solve everything in my favorite applications than I am used to for years, Nova launcher and Sesame shortcuts, Google dialer and Contacts, etc.
