Task.Delay() is 10x slower in docker linux than in windows

I am struggling with a timing issue I have in Docker

Here is my test code:

    using System.Diagnostics;    DisplayStopWatchResolution();    var timer = new Stopwatch();    //begin the test    while (true)    {        timer.Restart();        timer.Start();        //Thread.Sleep(1);        await Task.Delay(1).ConfigureAwait(false);        timer.Stop();        Console.WriteLine($"Task time {timer.Elapsed.TotalMilliseconds}");    }    static void DisplayStopWatchResolution()    {        if (Stopwatch.IsHighResolution)        {            Console.WriteLine("Operations timed using the system's high-resolution performance counter.");        }        else        {            Console.WriteLine("Operations timed using the DateTime class.");        }        long frequency = Stopwatch.Frequency;        Console.WriteLine("  Timer frequency in ticks per second = {0}",            frequency);        long nanosecPerTick = (1000L * 1000L * 1000L) / frequency;        Console.WriteLine("  Timer is accurate within {0} nanoseconds",            nanosecPerTick);    }

What I want is for the system to wait around 1ms.

However I am getting these results:

• Windows | Timer is accurate within 100 nanoseconds:

  • await Task.Delay(1).ConfigureAwait(false); is roughly 1.942 ms (acceptable)
  • Thread.Sleep(1) is again roughly 1.942ms (acceptable)

• Linux (ubuntu on WSL using docker) | Timer is accurate within 1 nanoseconds:

  • await Task.Delay(1).ConfigureAwait(false) is roughly 10 ms (my bad case)
  • Thread.Sleep() is 1.0712ms (really good)

• Linux (ubuntu running the exe):

  • await Task.Delay(1).ConfigureAwait(false); is roughly 1.942 ms (acceptable)
  • Thread.Sleep(1) is again roughly 1.942ms (acceptable)

I need to use docker and would prefer to use Task.Delay() as to not block the thread however with the performance being 10x what is should b, it's not really an option.

My question is how to fix Task.Delay() under Docker linux to not be so slow.

Thank you

NOTE:As requested, here is a github link with the code and docker files

https://github.com/anthonyMc11/TaskProblem/tree/main