Europe (Germany) LIMIT speed to 25 Kmh

[BenInGermany]

   Hello all.  I bought my Radwagon in 2017 just before the aluminum frame version. I love the bike and it is still going strong. The service team has also been very good over the years, thank you Rad Power Bikes!  Question:  In Europe, the bikes are limited to 250 watts, so of course my 750 Watt (1 hp) bike would normally have to be registered and insured as a moped with a plate. This would also mean that I cannot use the bike paths that go to my work. The only legal way I can use my bike as a bike would be to limit my speed to 25 Kmh so I do not attract attention of Karens and their terrible offspring. How do I limit the speed to 25 Kmh in the menu?