Setting the PopupDecimalPlaces option does not have any effect on .NET Framework, ASP.NET MVC. Looking at the code, it seems like the problem is with [StackExchange.Profiling.Internal.Render.Includes() (2nd overload)](https://github.com/MiniProfiler/dotnet/blob/a009d55a19050c8b88a3ea0c357d54ad192763b5/src/MiniProfiler.Shared/Internal/Render.cs#L134). This overload does not emit the data-decimal-places attribute, whereas the first one does.