Can you handle the speed?
That depends on your own maturity and intelligence. It has nothing to do with the bike.
The throttle on motorcycle works the same whether the bike is a 250cc, 600cc ,900cc , 1300cc or whatever.
You twist the throttle to go only as fast as you need to. SIMPLE LOGIC, unless you are an idiot.
If you didn't learn how to master such a simple task, then take some safety lessons and track lessons.