For circle shadow not blending properly from corners

For the circle, the shadow is not blending properly from corners

const shadowOpt1 = {
           width:150,
           height:150,
           color:"#000",
           border:30,
           radius:75,
           opacity:0.2,
           x:0,
           y:0,
           style:{marginVertical:0,marginHorizontal:40,}
       }

And if the border-radius is greater then 50% then getting an unexpected result

const shadowOpt1 = {
           width:150,
           height:150,
           color:"#000",
           border:30,
           radius:80,
           opacity:0.2,
           x:0,
           y:0,
           style:{marginVertical:0,marginHorizontal:40,}
       }

[dagatsoin]

It is those SVG commands: https://github.com/dagatsoin/sproutch/blob/master/src/components/shadow/Shadow.tsx#L193

[SimonChaumet]

Still no update on this ? Or any workaround ?