With this way of driving Turbo 100hp better than 84hp? Never driven turbo. Driving feeling?

Hello. I am totally unsure which i20 (order hasten yes), we should order now. We currently have a 78hp from 2011. Very satisfied. Also pulls off the first meters well. No hole or kink like the current GB FL. We drive mainly overland 80kmh, highway 120kmh, and partly city. Now we drive e.g. at 50kmh in the 3rd aisle with approx. 2500Upm. At 80kmh in the 5th 2200 and at 100kmh in the 5th with almost 3000Upm. So hardly high-touring. Can anyone explain us how that feels with a 100hp turbo? Does the turbocharger come at 2500Upm? Or do you notice that only if you accelerate out of the 4th gear of 80kmh. Here the 78hp is rather lame. We are concerned about a smooth journey without jerking etc. Normal trigger stop. And the consumption (currently with 78hp always between 5.5 and max. 6L) should also fit. A test drive is very difficult. Our dealer has only one 75hp for trial driving. Also other dealers near no 100ps or 120ps. Thanks