Contour map, load a big data with a substantial number of NaN values

Start let me apologize about my English. I found myself send to you a request for help with plot.ly after the difficult struggle with the library with a sad ending.
I need to mention that I am using the react version of plot.ly, my problem began when I need to use Contour map and load a big data with a substantial number of NaN values. The big problem that the component load very slowly, serval minutes to be sure (about 5-10 minutes), sometimes the browser crashes because of that problem.
I try to replace the Nan value with an integer number but it changes the color scale to an unwanted result that it is difficult to fix too.
so my last chance is you if you can help me with my problem or direct me to someone how can help me to get a good solution

Beginne damit, den React-Contour-Map-Fall mit großen Datenmengen zu reproduzieren, die viele NaN-Werte enthalten, und verwende dabei die im Issue gemeldete Ladezeit von 5–10 Minuten sowie den gelegentlichen Browser-Absturz als Ausgangsbasis. Untersuche den Pfad für das Kontur-Rendering und verifiziere, dass das Ergebnis zuverlässig geladen wird, ohne NaN-Werte auf eine Weise zu ersetzen, die die Farbskala verfälscht.