Asp.net 2.1 Microsoft.AspNetCore.ResponseCompression perfermance

Question

Microsoft.AspNetCore.ResponseCompression for asp.net 2.1 required

services.Configure<KestrelServerOptions>(options =>
{
     options.AllowSynchronousIO = true;
});

会不会因为ResponseCompressionMiddleware使用同步IO api而导致性能下降？