Honda Pantheon FES 125 year 2005, gas acceptance problems

Hello to the forum, I bought myself yesterday from first hand a Honda Pantheon FES 125 from the year 2005 with just 1000 kilometers on the speedometer. On the way home from the Westerwald back to Saarland, it was about 260 kilometers, I noticed at full throttle, that the scooter on the last possible position of the gas grip does not take the gas anymore, but makes it completely. It feels and sounds like the fuel is going out if you know what I mean. As if a Dro If I go back a few millimeters with the gas grip, it accelerates again perfectly. Otherwise the scooter runs really well and I could not make out any further defects. Well, maybe a little grinding while braking. Could the brake pads be glazed due to the age, it is almost 9 years? I hope here are a few experts who can help me there. Greeting Erik