Used R850R times

I was a WE in Spain and I borrowed the R850R. Otherwise I drive the Yamaha XJ6 (600 cubic, 4 cyl). Since I saw that some have the R850R here, I would like to ask a question in the round. If the R850R was still offered today, there was a reason to buy it? (is the R1200R different?, is one better operated with 600-er Japanese? etc.) I found the vibrations too strong and, as was mentioned in other threads here, the engine seemed tormented. It felt not effective. more comfortable or more dynamic than XJ6. I ask the question because I’m still a beginner with just 10000km on the speedometer. I just want to understand if I might have dealt with this wrongly. For example, I noticed that if I had moved the machine between 2 and 2.5K revolutions, it felt really fluffy. There was nothing unpleasant about the engine. But that only went downhill. Otherwise, somewhere between 3 and 3.5K had to be to get the same dynamics. And over 3.5K, vibrations were much too strong. Just to speed up no topic, but in the 6th gear over 130Kmh it was no longer pleasant (i.e. absolutely over 3.5K). Can it be that the machine is simply not designed for over 130Kmh? Or how do you do it when you drive up Serpantine, for example? And one more question, I have never driven the 1200 boxers before. Did the Modern R1200 differ strongly from 850? An F800GS and an F650 I already had. They’re really different.