Webp with lossy conversion weighs a lot more than lossless. #2171

using SixLabors.ImageSharp;

var image = SixLabors.ImageSharp.Image.Load("startFile.png");

image.Save("outLossless.webp", new SixLabors.ImageSharp.Formats.Webp.WebpEncoder
{
    FileFormat = SixLabors.ImageSharp.Formats.Webp.WebpFileFormatType.Lossless
});

image.Save("outLosssy90.webp", new SixLabors.ImageSharp.Formats.Webp.WebpEncoder
{
    FileFormat = SixLabors.ImageSharp.Formats.Webp.WebpFileFormatType.Lossy,
    Quality = 90,
});

image.Save("outLosssy80.webp", new SixLabors.ImageSharp.Formats.Webp.WebpEncoder
{
    FileFormat = SixLabors.ImageSharp.Formats.Webp.WebpFileFormatType.Lossy,
    Quality = 80,
});

image.Save("outLosssy50.webp", new SixLabors.ImageSharp.Formats.Webp.WebpEncoder
{
    FileFormat = SixLabors.ImageSharp.Formats.Webp.WebpFileFormatType.Lossy,
    Quality = 50,
});

image.Save("outLosssy10+Alpha.webp", new SixLabors.ImageSharp.Formats.Webp.WebpEncoder
{
    FileFormat = SixLabors.ImageSharp.Formats.Webp.WebpFileFormatType.Lossy,
    UseAlphaCompression = true,
    Quality = 10,
});

image.Dispose();