Marshmallow 6.0.1 update killed my Phone speed

[Bob Herbert1]

Both my son and I own Samsung J7's. Both of us have experienced severe sluggishness opening all app following the Marshmellow 6.0.1 update. Totally a disappointment with Android. Any help on the way?

 

[B. Diddy]

Welcome to Android Central! Try wiping the cache partition: https://support.t-mobile.com/docs/DOC-30305