JSON serialization Value Conversion not tracking changes with EF Core

I was able to get change tracking to kick in by adding a ValueConverter and a ValueComparer to the Metadata of the property, however, my comparer is probably very inefficient. If anyone has suggestions on performance tuning for this, it would be much appreciated.

mb.Entity<MyObject>().Property(p => .MySerializableObject).HasJsonConversion();

With the new HasJsonConversion extension method

public static class ValueConversionExtensions{    public static PropertyBuilder<T> HasJsonConversion<T>(this PropertyBuilder<T> propertyBuilder)    {                   ValueConverter<T, String> converter = new ValueConverter<T, String>(            v => JsonConvert.SerializeObject(v),            v => JsonConvert.DeserializeObject<T>(v));        ValueComparer<T> comparer = new ValueComparer<T>(            (l, r) => JsonConvert.SerializeObject(l) == JsonConvert.SerializeObject(r),            v => v == null ? 0 : JsonConvert.SerializeObject(v).GetHashCode(),            v => JsonConvert.DeserializeObject<T>(JsonConvert.SerializeObject(v)));        propertyBuilder.HasConversion(converter);        propertyBuilder.Metadata.SetValueConverter(converter);        propertyBuilder.Metadata.SetValueComparer(comparer);                    return propertyBuilder;    }        }