On Lolipop 5.1., I think the apps launched faster in my opinion. Even though the overall speed of the phone is faster on the marshmallow. But we're talking couple .2 or .3 of second like formula speeds difference. Nevertheless, the app launch is fast, stupid fast on this phone. I mean, I don't remember sitting and waiting for the app to launch in like 5 or 10 seconds. I will say this, the difference between my droid bionic on ice cream sandwich and this note 5 on marshmallow app launch speed, is a pretty profound. NOW we're talking about 5-10 seconds faster than my 4 year old droid bionic phone. The difference between my note 3 lollipop and note 5 marshmallow, isn't as profound. Maybe about 1 seconds difference. Like I said, formula speed difference.