Technically 18.3% growth translates to 5.5% growth average over the past 2 years since 2019. Not bad, but room for improvement exists, as ideally, growth should remain somewhere between 5.5-6% over the next 5 years at least.
Having said that, even despite the virus restrictions of February, withdrawal of stimulus, skyrocketing commodity prices (causing net imports to weigh down on the rest of the economy) and massive deleveraging efforts by PBOC, that the economy still grew 18.3% is a good sign. An especially good sign is how retail sales shot through the roof:
"In March, retail sales jumped 34.2% from a year earlier, the National Bureau of Statistics said Friday. The result was higher than 33.8% growth posted in the first two months of the year and beat economists’ expectation for 28% growth. In month-on-month terms, retail sales rose 1.75% in March, accelerating from 0.56% in February."
This indicates consumption, after lagging for much of last year, is finally starting to roar back with full force. Coupled with the fact US stimulus only started rolling out mid-late March, Chinese exports + industrial production will likely continue accelerating relative to last year. If China can ramp up vaccinations such that 50% of people are fully vaccinated by the end of June, and herd-immunity by September, growth above 9% cannot be ruled out (growth should be at least 8.5% for FY2021)