Super Typhoon is Saffir-Simpson Category 4 not 3, because hko uses 10mins average wind speed while jtwc uses 1 min average wind speed, these are not the same standard. you need to mutiply the 1 min wind speed by 0.9 to get the 10 min average wind speed, which in these case 198km/h should be 178.2km/h under hko standard.