iPhone so slow and laggy after the update of IOS 14.5.1

Hi,

After updating iOS to 14.5.1 I noticed that my iPhone 11 Pro MAX lost it's smoothness in the UI and in the applications I've been using.

I tried to restart the device, free up some space but this does not help.

How this can be solved?

Hi,

What did it for me, with an instant return to normal operation, was plugging it to the MBA.

As soon as the blue bar at the top appeared, my 7+ became snappy again.

In fact I wanted to restore it to 14.5, which proved unnecessary after all.

I’m experiencing slow and latency with the apps as well. Most notably is the notes app. When I type any notes the text is far behind from when I’m typing. I can stop typing and the text will catch up. I have an iPhone 11, 256 gb, it is a new phone so it still has a bulk of its memory. As a new phone I expect it to be more speedy. I’m disappointed in its performance.

I have had the same problem. I watched my phone drop 17% in less than 45 seconds. I can’t keep a connection and it’s throwing out passwords and usernames. I had just got the account to comment earlier when I was fed up that it took 2.5 minutes for Google to pull up. Just now as soon I hit reply the whole phone shut down and did a hard reboot. Now that have had to creat a new account to sign into this….. This Update Sucks and has ruined my phone. To be honest it never got a good signal but just figured it was because Verizon is so dishonest about their coverage in North Alabama. Now? Maybe it’s just the phone because this is my first IPhone but I never saw these issues with my old phone. Are updates constantly going wrong commonplace?

My experiences are mirroring yours but I also noticed it doesn’t even pick up or stay connected to WIFI most of the time. I’ve even had turn turn my screen brightness up because it seems so dim and a bunch of my apps seem to trigger the phone to reset or the passwords are missing. It’s like 14.5 fried the phone.

iPhone Xr. Worked perfectly UNTIL updated to 14.5.1. Now so slow it can easily take 1-2 hours for app store download. And Ring will not play videos. Also, songs skip during playing. Have 81 GB free space. Only time I restart my phone is when it does a self-restart overnight. Happens when battery is at 100%. Tried allowing battery to go dead --no improvement. Suggestions?

To any ll who have posted recently - how much time has passed since you updated to 14.5.1 ??  As Dogcow-Moof posted - most problems resolved themselves after 24 hours +.  I initially had really slow (slaggy) system when I updated to ios 14.5.1 but after 24 hours it improved and now it works fine (iphone (7) and ipad (2020). 

I have the exact same problem since IOS update 14.5.1

The only ‘Solution’ that works right now is to turn off your IPhone and connect it to a power charger and let it boot up.

this issue need to be fixed ASAP

Lagging across multiple apps on my new iPhone 12 since update to 14.5.1. Did more than restarted - I wiped the phone (hard reset), no improvement. This is reeking of intention. Not gonna get me to upgrade, oh no you won’t!

Tried that. No improvement. (Turned off. Waited 20 minutes. Plugged into charger. iPhone "auto-started" --I didn't do anything to cause the restart.) Any other suggestions or is to time to visit the Genius Bar?

Yes, there's an issue that messes up the low energy mode. I didn't have to restart mine at all: I just started a sync on the Mac and it started to behave normally right away.

No problem ever since (iPhone 7 +).

This is what I tried: Turned off. Left off for 4 hours. Plugged into charger --it auto-started. Left it on charger for 4 hours. While still plugged into charger, signed in with password to enable face recognition. While still connected to charger, tried to use Ring --would not display videos. Tried to download new app from App Store --THREE hours to download. Have ordered a Lightning to USB-C cable which will arrived tomorrow. WIll then try the iPhone to MacBook Pro sync that someone suggested. I will report success or failure after that attempt tomorrow. Any other suggestions? (Note: low energy mode is off.)