You're in Bangkok? Maximum speed limit on some motorways is only 120 kph. Fines are 500-1,000 Baht, ($16-33 USD!) more or less random, depending on the area and officer or camera. So basically no one cares if you speed excessively except the other drivers/riders.
Honestly, you may need a different bike to keep up with traffic flow. The only instability on the Super Ten is if you're running bags and top box w/o passenger or gear on the pillion seat. Or have loose steering head bearings. Or have a badly worn/cupped front tire.
@Sierra1 - Your son might have been having trouble, but the FJR wasn't. It will do an honest 150 mph, some a bit more. GPS verified, not speedo. I haven't taken the Gen II S10 up to FJR Nominal to see if it will go there. Not worth the hassle in the Snowflake world we live in now, especially in the East.