The first thing you should do to make your app better is to size down the images you are using.
The file clouds-01, which I see is your background, is 2.16 mb and is 3504x2336 which is totally unnecessary to be that big.
The file content1.jpg is 5556x5556 1.82mb, again totally unnecessary to be that big.
The file TadFace.png (I guess that's the "bird") is 1080x1920 1mb. Guess what? TOO BIG.
Also, the red button image is duplicated (button.png and unnamed.png)
Start by reducing the images to what is really needed and then we will continue "debugging" your app.
