geom_circle is highly resource intensive

[yhoogstrate]

I tried to make a corrplot like figure using ggforce::geom_circle using ~100 * 100 circles. This takes exceptionally long and consumes a lot of memory. I also noticed that when exporting a circles to vector format, the circles created consist of 360 individual connected points rather than an actual circle. This might be related to the issue.

I noticed that in another implementation of ,geom_circle, geomnet::geom_circle, (https://github.com/sctyner/geomnet/blob/master/R/geom-circle.r) actual circles are exported.