how can this be? even ipad air 2 with much bigger screen has no lag.

totally unacceptable for a premium product.

if steve jobs still around, all these clowns would've been fired.

I think it's fine because everyone has different priorities and likings. Some people might not mind the sluggishness, some would The thread is about sharing experiences so I think it's alright to discuss what people are concerned about. On the other hand, Samsung vs Apple is another comparison altogether so let's not getting mixed up with 6 and 6+ comparison.

weird, but i noticed that since my first day i bought the phone

I've been using iPhone since 3GS and historically, all latest iPhones are very fluid and smooth with the latest iOS. There wasn't one generation that has any form of "sluggish" except the 6+ now. One of the key reason why I prefer iPhone is because of it's "smoothness" and responses are spot on, snappy. Of course I would love that the 6+ have these characteristics as well Maybe Apple should have used A8X on the 6 plus instead? That little lag is surely a turn off in my opinion.

I'm a petty person I guess

you sure you dont get the slightly lag if you have notification e.g. SMS or whatsapp during your gaming time? i mean the banner notification

With my experience testing the 6+,
You'd often get this little jerk whenever you opened the tabbed view in Safari, especially when you had more than 3 or 4 open tabs. Also when you drag down for Spotlight. There was also slight lag whenever you opened an app in portrait orientation and then changed to landscape view within the app and then exited back to the home screen, or vice versa (this I have also experienced on Android tablets like the Nexus 7). Fwiw, this was with iOS 8.0.x so the issue may not exist now with after the newer 8.1.x updates. Dunno. Either way I'm getting the regular 4.7" model, not because of any lag issues, but because one-handed use is still pretty important for me.