M31s slow-motion video got flickering and frame dropping how 樂 to fix it any suggestions please

Model a10s updating one ui 3 failed and phone showing updating system phone is not working  please give some solution 

Will samsung galaxy m32 get one ui 5 update 樂

Will m31s get one ui 5 update 樂 

After stability updates phone gets lag and tons of bloatwares were installed  why I got irritated  after updates phone getting too slow there is enough ram and enough space 6 gb /128gb why phone gets slow iam afraid  of software update