Severe Keyboard Lag in Roblox on iOS 18.4 (Resolves When Low Power Mode is On)

Hi,

I’m experiencing a serious keyboard lag issue on my iPhone 15 Pro Max running iOS 18.4. When playing games in Roblox, if I try to type in the in-game chat using the default iOS keyboard, the typing becomes extremely laggy and drops a lot of frames.

However, if I turn on Low Power Mode, the issue disappears completely, and typing becomes smooth again.

This suggests that the problem may be related to background optimization or system performance handling in iOS 18.4. Open Roblox and start any game with chat input and Try typing in the chat box using the iOS keyboard than Observe serious lag and frame drops and Enable Low Power Mode.The lag disappears instantly.

•	iPhone 15 Pro Max
•	iOS version: 18.4
•	Keyboard: Default iOS keyboard
•	Issue only occurs when Low Power Mode is OFF

Please investigate this behavior. It’s very disruptive during gameplay and seems linked to performance scaling or system optimization.

Thanks!

My English is not very good and these are the ones I edited using Google Translate.

Is this happening in other games, or just Roblox? If it's just Roblox you should report this bug to Roblox, not Apple.

If it's happening in other apps/games on iOS, you can raise a bug here: https://feedbackassistant.apple.com/ and post the FB number here.

Severe Keyboard Lag in Roblox on iOS 18.4 (Resolves When Low Power Mode is On)
 
 
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