Help for improve the performance on composite

[fbonhomm]

Hi, I'm using sharp for add markers on image and this part take 3-4 seconds.

I found that too slow, Do you have an improvement for reduce this time.

  const image = sharp(input);
  const composites = positions.map((item) => {
    return {
      input: item.number ? getTaskPin(item.number) : getPointer(),
      top: item.x,
      left: item.y,
    };
  });

  return image
    .metadata()
    .then(function (metadata) {
      const orientation = isLandscape(metadata.width, metadata.height);

      return image
        .composite(composites)
        .rotate(orientation ? 90 : 0)
        .sharpen()
        .jpeg()
        .toBuffer();
    });

[lovell]

Hi, did you see #2286 ?