The solution to lagging and freezing of the screen and the phone as a whole is a frequently requested on GetDroidTips and unfortunately, even the most appealing and powerful iPhone XS Max is not spared here. Usually, lagging and freezing issue on iPhones is caused due to memory issues, cache memory, apps that have turned rogue or if there are software bugs and finally, due to malware and viruses infestation among other possible reasons. In some cases, wear and tear due to constant rough use or physical or liquid damage could cause the concerned components of the system as a whole to get fragged and respond abnormally when putting under pressure such as when streaming live videos or while playing intensive graphics games like Fortnite or PUBG, etc. Although this definition given here contains most of the reasons why your iPhone XS Max will lag or freeze once or more times, it is not usually the only reasons why it could happen and thus, there could be a series of underlying issues that I haven’t mentioned causing the issue on your device.

The common methodology used to fix this issue on Apple iPhone XS Max is to find workarounds or use the various settings and functionality of the device to turn around the issue and kick it off. Although you could end up finding millions of troubleshooting guide on how to fix iPhone XS Max that suddenly keeps lagging and freezing, I have prescribed a detailed troubleshooting guide on how to fix the issue using the various methods available at your disposal. This is a detailed guide and thus, must be at your disposal for almost any reason your phone is facing the said problems. There is also a guide on where you can visit to get the phone diagnosed or fixed if the problem is indeed on the hardware end.
How to fix an Apple iPhone XS Max that suddenly keeps lagging and freezing?
Method #1: Clear all the background apps
A lot of people wouldn’t give a second to think about apps that they use and minimize without closing or exiting from it. These apps are called background apps and can be easily relaunched were left simply by viewing the recent apps and tapping on it. However, these apps might misbehave or at least one of the app(s) could misbehave or become abnormal or hostile when there are just too many apps in the background and other potential issues. Thus, it is practically recommended to clear all the background apps that you can do so simply by repeating the said step-by-step method.
- Tap on the bottom center of the screen (when on the home screen) and drag it to the center of the screen.
- This will trigger the device to showcase recent apps via card previews.
- You can simply drag and flip each app upwards to get rid of it.
- Repeat the same procedure for each app and there you have it, the process is over.
- Verify if it did make any changes to the lagging and freezing situation on your iPhone XS Max.
Method #2: Clear app cache files
Cache files make sure that you can access an app or service immediately or at least reduce the overheads. However, these files tend to end up getting corrupted or are vulnerable to bugs and therefore, deleting it is the best thing you could do for now. This is a redundant procedure as you would have to do for each app individually.
- Firstly, go to Settings >> General >> Storage & iCloud Usage.
- Next, tap on ‘Storage >> Manage Storage’.
- A list of all the apps will appear where you click on an app, select ‘Documents & Data’.
- If the cache files are more than 500MB, try uninstalling and reinstalling the app and there it is done.