iPhone 17 Pro Max overheating, Battery drain, and lagging After iOS 26.4 update

I am an iPhone 17 Pro Max user, after updating to iOS 26.3 and then 26.4. I feel my iPhone is very hot when on screen and when charging, even though before updating to iOS 26.3 my battery lasts and I don't need to carry a power bank when I'm out of the house. I am also a trader, so my iPhone screen is usually always on for trading applications. Before updating my iPhone was fine, but disaster struck when I started updating to iOS 26.3 and then there was no change in 26.4, my iPhone was very hot and used up the battery faster. This is a screenshot of using the application on my iPhone as usual

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Original Title: IPHONE 17 PRO MAX OVERHEAT, LAGGING, AND BATTERY DRAIN AFTER UPDATE IOS 26.4