Paragraph rescaling errors

The paragraph rescaling font sizes is driving my crazy i need help 🧐

I have P1 that somehow is getting bigger when I resize the width of the browser! which doesn't make any sense to me. 

It seems to be resizing at random widths, somewhere around 2200-2700px it gets bigger before it starts to get smaller proportionally. 

I have tried with CSS to limit the sizes  but when i try to scale this parameter of course all paragraphs are affected.

Quote

 

// Paragraph

p {font-size:3rem!important}

}

 

I tried also to scale down in Pixel width sections (ie 1800-2600px) with the 

p.sqsrte-large {
  font-size:3rem!important
}

still no consistency. It gets bigger "halfway into scaling" before it gets smaller.

Any helpy would be greatly appreciated am lost as to why this is happening...
pass:  Designsuite

Posting another 3 examples , you can see on the chrome tool the width of the page. Paragraph is behaving so randomly i don't understand. It gets bigger in the mid resolution size (mid photo) , gets very small proportionally (3rd photo). 

any help would be appriciated i can't find a solution to scaling down the paragraph proportionally. 😅