Hmm. That’s weird. Me, my mom and my dad all have the same phone. I try to keep them on whatever I’m on to make trouble shooting over the phone easier when they call me with problems. Both of them report laggyness, too.
Eta
I should clarify, until recently, I’ve been used to higher end phones. The note series and whatever flagship LG was rocking when I was off the notes. Maybe I’m just spoiled?