Jonathan and Speedwagon just saw you destroy an enemy Hamon user in a yoctosecond. They didn't know if you destroyed the Hamon user in a millisecond or a second due to them not knowing what a yoctosecond is. But however, they were incredibly impressed by you and your incredible power. Your power was above and beyond their comprehension. You used power they never seen before. What made it even more impressive for them was that you were an incredibly beautiful lady.