iPhone 7 Plus is not good for game streaming?

Hello thank you for the response.

Yes the delay only occur when the adapter and capture card are connected to my iPhone, I already tried charging my phone while playing heavy graphics intensive game and it doesn't create any ghost touches unlike when it's connected to the adapter and capture card or even through the adapter alone.

I tried it on Mobile Legends and it still creates ghost touch. To be specific, the ghost touch mostly will occur when there are two touches on the screen, or when I touch the screen with both my left and right thumb, but the ghost touch won't exist when I only touch one finger on the screen.

Example: Thumb 1 for Joystick and Thumb 2 for Aiming, when both thumbs touches the screen, the ghost touch will occur after 2 to 3 seconds.

If my Thumb 1 is only using the Joystick and Thumb 2 is not touching on the screen (means only 1 touch is holding the screen) the ghost touch won't occur.

So there's no problem really when using the adapter when watching videos but for Mobile Streaming or for Streaming Games, it's really a problem..

I already tried both iPhone X and iPhone 11 again using the same adapter and capture card ang tested it with Mobile Legends, again, there's no problem with them, I already tried playing/streaming 2 hours straight with both iPhone X and 11, and there's no ghost touch happening at all.

This is the link for the sample video --> https://streamable.com/fbsmpr

If the screen looks like shaking, that's the ghost touch I meant and I am using both my left and right thumbs at that time to touch the screen and trigger the ghost touch.