Google Adsense 3 Short Questions

Question

I have a website and now I’m thinking about adsense to make some money.

I have some questions:

1 Is there a way to make Adsense better? I hate the white background and the bluish frame around it, can it be stylized?

2- Is there any formula for how much it does? A website is a website for announcements, which means visiting all kinds of people. But is there any formula like x Visitors = x Money?

3 Will it slow down my site?

thank

Answer 1

1) You can customize the look

2) I find about 0.5% click rate

3)