Galaxy A5 2016 became extremely slow after factory reset

[icefront]

After the first factory reset (2019), the Galaxy A5 2016 became very laggy, unresponsive, and slow. Everything is moving on the phone utterly slow, even simple things, like the keyboard does appear after a minute. Can't use this s**tphone anymore.
Is there anything I can do to revive the software in this device?

 

[mustang7757]

Have you tried safe mode ?

 

[B. Diddy]

If you have an SD card inserted, try removing it, in case the card is corrupt and is causing the system to glitch.