They were doing well initally but they didnt pay attention to living conditions of their immigrants so that's where the disease gained a foothold.
Linear plots of this are pretty useless. Please show a logarithmic plot.
https://www.worldometers.info/coronavirus/country/singapore/
The logarithmic plot of cases in Singapore show it’s flattened the curve, and the deaths per day for the last month are pretty much constant at 1 per day, +/- 1.