Can anyone help speeding things up a bit?

Hi there! I'm having some doubts about the phone, switching between apps forces app refresh, even if I switch only for a couple of seconds. If I was filling up a form and had to check something in another app (let's say a bank app), everything I completed resets itself. If I was using a browser, leave it for a couple of seconds, come back, it refreshes the website (spending data and time). Any way to make it better? A really fast phone but this is bothering me.

Here is a video I recorded to show what I mean.

https://youtu.be/b_wrBgJrS4M

Tried limiting 4 background process as someone suggested me but it didn't change behavior.

Thanks!

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