1. David Van Ryn's Avatar
    Using the Lumia 830.

    I see this in almost all app's, on the home screen (when swiping finger down mostly), see it in the app's list, the battery app, etc...

    People keep telling me there's is fine, but on my phone and my girlfriend's phone it is clearly stuttering. Both 830's

    Some native app's scroll without any stuttering, other simply lag.
    I tried most of the tweaks suggested on this and other forums with no result. My lumia 820 never had this issue!

    Please let me know how your phone is doing.
    luMia630 likes this.
    12-23-2014 05:52 PM
  2. tgp's Avatar
    I think all of the WP8 devices I've had have done it, even before 8.1. On my 920 it's very obvious. I just figured it was a "feature!" I notice it mostly in the Settings menu. Slightly, but very noticeably jerky.

    Sent from whatever device I happen to be using today using Tapatalk
    12-23-2014 06:07 PM
  3. Onager1286's Avatar
    Hm this is interesting. I have a 920 and a 635, both with 8.1 and Cyan. If I'm seeing the same thing as the OP, my 635 feels quite a bit laggier than my 920. I attributed this to either a lower refresh rate on the 635 (didn't Nokia tout the 920 as having 60 Hz refresh rate?), or else the Snapdragon 400 chip isn't handling WP8.1 well. I'm not sure, thought my experience might help narrow the issue down.
    David Van Ryn likes this.
    12-23-2014 07:13 PM
  4. a5cent's Avatar
    ^ I would disagree with tgp that all WP devices have micro stutter, or at least I have not noticed it. I don't recall seeing any jitter on a L820, ever. However I do agree that the L830 is particularly susceptible to this. I have yet to see it in 1st party apps, but in 3rd party apps micro stutter seems quite common. This will very likely be true of every L830. At least every device I've seen exhibited the same thing.

    It's not lag however. The L830 tracks my finger pretty much perfectly. Micro stutter is seen best when scrolling through graphical lists at a medium speed.
    David Van Ryn and luMia630 like this.
    12-23-2014 07:13 PM
  5. npoe's Avatar
    I have the problem from time to time (not always) and specially when closing an app pressing back until I get to the menu. I'm using a Lumia 920.
    David Van Ryn likes this.
    12-23-2014 07:30 PM
  6. Jas00555's Avatar
    I have yet to see it in 1st party apps, .
    Really? You've NEVER seen a 1st party app to this? Fascinating *cough* Xbox music *cough*
    12-23-2014 07:33 PM
  7. nallWhite's Avatar
    I see it when apps close and the start screen launches. I'm on an 830 and had the same issue on a 635
    12-23-2014 07:40 PM
  8. Ruined's Avatar
    Its definitely there on my 928, but the 8.1 OS feels faster somehow than 8.0 did despite the stutters.

    Overall I like the feel of 8.1 better.
    12-23-2014 07:42 PM
  9. tgp's Avatar
    I would disagree with tgp that all WP devices have micro stutter,
    I disagree with that too, but that isn't what I said. All the ones I have used extensively have it. However, that consists of a 520 and a couple 920s. I have little experience outside of those models. I did have a few 521s as well but I used them very little. I was surprised; it was not the butter smooth experience I was expecting.
    a5cent likes this.
    12-23-2014 08:11 PM
  10. realwarder's Avatar
    I think 8.1 stutters more than 8.0. It most definitely stalls and resumes more, but maybe that's the Band driver being a bit raw. Guess I should try turning that off for a few days.
    12-23-2014 08:35 PM
  11. EspHack's Avatar
    Its definitely there on my 928, but the 8.1 OS feels faster somehow than 8.0 did despite the stutters.

    Overall I like the feel of 8.1 better.
    I would take 8.0's smoothness any day, 8.1 tries too hard to be faster and it just looks bad sometimes, a lot of frame skipping
    12-24-2014 12:26 AM
  12. a5cent's Avatar
    Really? You've NEVER seen a 1st party app to this? Fascinating *cough* Xbox music *cough*
    lol, as I recall, so far I have opened that app on my L830 just once... no micro stutter at all and completely smooth (I also had no songs on my device at the time). 😇
    12-24-2014 02:14 AM
  13. aximtreo's Avatar
    It's there on my M8 for Verizon. Not all the time but seems to happen in program more so than menu's.
    a5cent likes this.
    12-24-2014 09:05 AM
  14. David Van Ryn's Avatar
    I hope WP10 will bring better performance and all-round better experience (less stutter, etc..), they have a very interesting platform on they're hands.
    I would hate to see it go away cause of people losing interest.

    tried the other platforms and didn't like what i saw, tried Wp and was sold true my old phone Lumia 820, now all i see and read is issues and good hardware under-performing..

    In some apps it works flawlessly, internet explorer is the least stuttering of the original app's. And on the 3th party list, i found Insider pro to be working absolutely flawlessly, even in the longer list's scrolling. So it IS possible to make this phone and other Lumia's run the OS and other app's without hick-up's. Go Microsoft, Gooo i believe in this platform and defend it when i can, don't let me down :-) (i know they don't read this, but still wanted to say it :-) )
    12-24-2014 10:24 PM
  15. denzilla's Avatar
    My 920 is smooth sometimes and stuttery as you describe others. Looks like WP needs a "project Butter".
    12-25-2014 09:30 AM
  16. luMia630's Avatar
    I see it when apps close and the start screen launches. I'm on an 830 and had the same issue on a 635
    if you mean slight lag during animation of returning to start screen remove cortana live tile
    mjyumping likes this.
    05-23-2015 10:18 AM
  17. mjyumping's Avatar
    if you mean slight lag during animation of returning to start screen remove cortana live tile
    Good find! I really don't pin Cortana on start screen so it's smooth, but I tried to pin it now (to test it) and it really lags after I pinned it! I removed it again and the lags gone.
    luMia630 likes this.
    05-23-2015 10:36 AM
  18. luMia630's Avatar


    i have tried to record stuttering in slow motion (240fps) maybe it helps, hope you can see sort of jumping there when swiping with finger on screen in contrast to smooth swiping in the end of video where i lift finger form screen :)
    05-23-2015 01:23 PM
  19. anon(5518418)'s Avatar
    Yip my L640 does this, it stutters in general.
    luMia630 likes this.
    05-25-2015 01:55 AM
  20. luMia630's Avatar
    Yip my L640 does this, it stutters in general.
    Glad I'm not alone who see it, I was about to start thinking that OCD gives people powers to see micro stuttering on (according to all reviews) perfectly smooth OS :D
    noersetiawan likes this.
    05-28-2015 01:15 PM
  21. luMia630's Avatar
    hi here is a little experiment to find answer to this scrolling stutter : http://forums.windowscentral.com/win...=1#post3134086 can you please participate? thank you
    06-25-2015 03:26 AM
  22. luMia630's Avatar
    I've found interesting thing, not sure if it proves anything but at least it could be a potential reason for this scroll jitter. I've looked at how WP work with touch and find out that they actually differentiate scrolling by dragging finger across the screen which they call simply DRAG, and just flicking the screen to scroll which they specify as FLICK. That's a fact so there is actual difference between dragging and flicking which some of us see. Now remember that this micro stutter looks like a content of the screen that is being scrolled sort of jumps number of times. Well Microsoft specify that when people start moving finger across the screen manipulation event called ManipulationStart occurs and than during drag ManipulationDelta event occurs number of times until movement stops, to notify system where exactly users finger is. Did you see this certain similarity there? System deals with touch by firing delta event multiple times like screen jumps multiple times, but when we just flick the screen and lift our finger from screen no delta event occurs as same as there is no jumping of content that has been scrolled. I know it could be nothing and I really don't understand how WP work and how rich works but it sounds pretty concurrent to me. Also if that's how it is, it would mean that this phenomenon is actually how system itself works and thus all windows phone devices as well. And that would mean that some of us are seeing things or others doesn't see this thing that is clearly there :D. Otherwise power of placebo effect ;). What do you thing could this be proof that this scrolling jitter affects all Lumia phones and possible source of this "issue"?
    08-01-2015 06:20 AM

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