iPhone lagging and slow after iOS 17 Update

i guess i solved this lag situation. i have this situation since ios 17 update. i connected to apple live chat support many times but they cant find how can fix it this problem. my device is iphone 12 128gb and everything is ok before the ios 17. when i updated my phone sometimes control center's swipe animations being laggy. its works like 30hz not 60hz when this problem happening. im using 17.5 ios and still apple didnt fix it. nvm so i tried to turn off automatic screen brightness on accessibility>screen and my phone works now healthy. its never lagged the swipe animation after this change, i turned on automatic brightness one time after that this problem continues.

The **** with you Apple.

You’re slowing down older iPhones on purpose. My 12’s are now all useless after last version update.

I’m switching my entire family and business cellulars to Android.

Apple is an evil company and needs to end.

I have found a temporary solution to this problem!!!

To do this, you need to turn off autobrightness and turn on transparency reduction in the Accessibility settings of your device, and then do a hard reboot

Exactly the same thing on my iPhone 12. 18 out of 64GB are remaining. I had this phone for about 2 years. I have iOS 17.5. The phone is notoriously slow, gets warm, and has poor battery life even if its life depended on it. The battery health is at 87%. Someone at Apple has to give the real reason for this. My dad is saying that I won’t get a new phone for a long time but I might have to pretty soon. Even my hotspot doesn’t work anymore! I used to get speeds up to 400Mbps on 4 bars of LTE. I feel like LTE used to be faster than 5G on my phone. Now, I ran a speedtest on Ookla and I got less than 1Mbps on the same type of cellular signal, 4 bars of LTE. I feel like Apple was wrong about RAM being “equivalent” to double the amount on a different OS. This phone has 4gb of that stuff, equivalent to a school Chromebook, which would be nearly a quarter of the price—and nearly the same speed. I hate this, Apple. I would very much appreciate if you would explain this.

My IPhone has been really slow since my update 17.5.1. It’s really messed up we pay so much for such a lagging slow phone, not to mention my daughter passed away and now I see my granddaughter with her monitor because they don’t live close and all I get is spins. Very disappointed! Apple get on the ball and fix this problem or more people are going somewhere else. I’ve been with you since IPhone 4 and they were even faster. Very sad and wrong to do to your customers.

I'm livid. My iPhone is almost unusable. Facebook doesn't display photos. My NY Times apps are so slow. 100% they do this on purpose and I'm looking to divorce myself from apple because enough is enough already.

My 14 pro max has been lagging so bad! Nothing loads, pictures and videos don’t load or take forever. Constantly force closes pages I’m on and says it lost network connection. Over last couple of weeks it keeps getting really hot when I’m using it, and I won’t even be on it long! Then goes dim to cool down.

Try force closing apps

Same here with 12 pro max

Same here, UI lag mixed with high temperature even just scrolling through pictures in photes

Can I go back to OS 16?

when i update my iphone se 2020 to ios 17 its lagging and slowing down my phone

seems to improve performance, thx

Same thing - is there any response from Apple - after 17 upgrade 13 pro max is not performing as it should - lots of weird glitches

Experiencing the same problem with my iPhone 13 need help ASAP my keyboard became so glitchy