C# 在一段时间内执行一项功能，并将时间作为参数

我希望在几秒钟内执行一些操作，将经过的时间作为参数（具体来说，lerp是外部硬件设备的配置值）。实现这一目标的简单方法是什么？我对C#可以处理线程和计时器的所有方法都有点迷茫

到目前为止，这就是我所拥有的，但它似乎笨重，而且可能是错误的

System.Threading.Tasks.Task.Run(async () =>
{
    var timeToRun = 5000; // in milliseconds
    var timer = new System.Timers.Timer();
    var startTime = DateTime.Now;
    timer.Elapsed += (s, e) =>
    {
        var elapsedTime = e.SignalTime - startTime;
        var normalizedTime = elapsedTime.TotalMilliseconds / timeToRun;
        someValue = Lerp(from, to, normalizedTime);
    };
    timer.Start();
    await System.Threading.Tasks.Task.Delay(timeToRun);
    timer.Stop();
});

---

我会选择一种简单的异步方法：

async Task Loop(int timeInMs, int iterationTimeInMs)
{
    for (int current = 0; current < timeInMs; current += iterationTimeInMs)
    {
        await Task.Delay(iterationTimeInMs);
        var normalizedTime = current / (double)timeInMs;
        someValue = Lerp(from, to, normalizedTime);
    }
}

async Task Loop(int timeInMs, int iterationTimeInMs)
{
    Task taskFromLastIteration = null;
    for (int current = 0; current < timeInMs; current += iterationTimeInMs);
    {            
        var delay = Task.Delay(iterationTimeInMs); // start delay now
        if (taskFromLastIteration != null)
            someValue = await taskFromLastIteration;
        await delay;
        var normalizedTime = current / (double)timeInMs;
        taskFromLastIteration = Task.Run(() => Lerp(from, to, normalizedTime));
    }
    if (taskFromLastIteration != null)
        someValue = await taskFromLastIteration;
}