New measurements every 4 seconds?

Yes, you can do this with Sanderling.InvalidateMeasurement().

If you write a loop which just calls this function and then reads from Sanderling.MemoryMeasurement, then you will see several new measurements per second in the API Explorer.
The code would look like this:

while(true)
{
	Sanderling.InvalidateMeasurement();
	Host.Log(Sanderling.MemoryMeasurement.Value?.EnumerateReferencedUIElementTransitive());
}

I found a post with some more background on InvalidateMeasurement: