Stutter issue (please pay attention to this issue)

As per Apple for the Apple Support Communities:

"Apple involvement. Apple may respond to questions but does not formally provide technical support on the Site. Any information that is provided by Apple or Apple employees is offered on an "AS IS" basis without warranties of any kind."

I suggest that you submit your suggestion/concern directly to Apple here: Product Feedback - Apple

On the other hand, if you feel that this is program coding error with Apple-provided software, then use this link:

• Bug Reporting - Apple Developer

And the stuttering is not the only problem about these iphones. Did u guys read this forum? - New iphones are very scratchable. Just look on the screen under good light conditions. You could be very surprised.

Hi bro I realized this shutter issue too the first day I bought myself a iPhone 11 Pro Max. Just so you know my iPhone 8 Plus has no such shutter issue since the beginning of iOS 11 and been through multiple iOS updates until iOS 13.6. One thing worth mentioning is I recalled that when I first updated to iOS 13, it had suffered from bugs that made our Home Screen showing signs of jerkiness when swiping left and right that's why Apple released so many iOS 13 updates within a few months to address multiple issues and I'm glad that the Home Screen jerkiness issue was fixed.

Wow it must have been really tough for you to endure since you were started to use your iPhone XS Max in 2018. I tried everything I could do like Reset All Settings and Erase All Content and Settings. Since I'm an IT guy so I know it's useless for reset and erase because the problem already existed as a new phone. And then I also did DFU restore but also to no avail. After doing some research on the internet I was suspecting that probably it's another Display Module faulty issue (https://support.apple.com/en-my/iphone-x-display-module-replacement-program) but later I came to think of it since my iPhone 11 Pro Max is a new phone out of the box but still have this issue then maybe it's not Display Module issue after all. I highly suspect it's iOS software or touchscreen controller driver issue. I guess Apple is using Synaptics touchscreen controller chip for iPhone XS series and iPhone 11 series.

this issue happens when the dark mode is on . Turn off the dark mode and things are smooth. Settings > Display & Brightness > Select Light .

I think this is a perception and there is no measure for this nor it can be demonstrated. As you clearly said " "it happens rarely" indicates it is an issue with the iPhone you have.

I am not sure how you have handled your iPhone and what is the battery condition and even the storage level of the iPhone in question.

If I were you. I would backup my iPhone on iCloud and restore it from there. Then chill out!

It’s does not depend on oled,this happens on my XR aswell after updating to iOS 13.2. The phone is brandnew and stutters a lot.If you Check control center management in settings and scroll up and down in the add and remove options tab you’ll experience major stutters.This also happens in battery management,in wallpaper selection,even in the home screen swiping from left to right.My phone sure is not faulty as it is brandew and its storage is empty. iOS was really smooth but now..

p.s. can somebody link the bug report site?

I don’t think it has to do with the refresh rate of the display and the support of 60hz on iOS 13.The stutters are most likely frame drops that happen because of some bug.This with the battery drain on iOS 13 are the most annoying bugs.Hopefully it will get fixed. Btw Where can I report this bug?

I just noticed the stutter scrolling issue with the update 13.2.1 and now still with 13.2.2. I first noticed it in Mail. Not only was it stuttering instead of smooth scrolling but I can no longer swipe to delete a message. I have to keep restarting mail and then it will scroll smoothly and I am able to delete by swiping temporarily but then the issue comes back. I noticed it tonight on Instagram as well. WTH?!. This is annoying as F#%*

iPhone 11 Pro

iOS 13.2.2

I tried replicating that on my phone as you suggested. It's a long list of menu items and on my iPhone 11 Pro, it moved very smoothly, even when going at high speed through the list.

It might have something to do with available memory on your phone. Your phone uses some of its memory for data storage, just like a hard drive on a computer, and some of the memory is used more like RAM (random access memory) in that the phone uses it for "thinking"/processing data. I have a phone with a 256 Gb capacity and nearly 111 Gb available free space. If you're using more of your capacity and are close to the limit, that can slow things down a bit, I'd think. If you are close to your limit, consider freeing up some space by deleting apps you're no longer using or files you no longer access (old videos, songs, podcasts, photos, etc.).

Some people like taking a LOT of photos/videos and never delete them or move them to another device, like a computer - that's one quick way to solve a storage space issue. I actually use a WD MyCloud drive - every photo or video I shoot goes to iCloud, and from there iCloud sends it to my MyCloud drive, freeing up iCloud space, while the MyCloud drive has a LOT of storage capacity - I'm currently at 8 Tb internal storage and have nothing yet connected to the external port, so I have room to expand it still. This allows me to delete old photos I rarely if ever look at and not worry about losing them forever.

If you love watching movies or TV shows on your iPhone, that's another major storage consumer. If you've watched it, delete it (or save it elsewhere first, then delete it).