[Python] What is a reasonable way to show many thousands of positions on a geodetic map?

My python3 code finds the geo coordinates that gets missed in a confined search area. This area can be very large. Each position represents a cell that is ~30 square meters. Google Earth plots my cells when the count is less than a few thousand. The more cells, the slower the response until Google Earth just freezes. My largest cell count is 240,000 over 5 x 5 mile area.

I'm asking 2 questions here. (1) Can my cells be manged into blobs that represent shapes so the shapes wont lock up Google Earth?

(2) Should I replace Google Earth with another visualization method?

The work is related to search & rescue and wildfire prediction.

I tried Google Earth but it locks up

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