Why does the plugin save a limited number of polygon points?

Question

Google Maps

There is a plugin Huge IT Google Map , with which you can create maps with an unlimited number of polygons. Everything in it is good, but only until the moment when it becomes necessary to create a polygon consisting of several thousand coordinate points. I already have the polygon data (consisting of approximately 10,000 points) in a text file and all that remains is to insert them into the appropriate window when creating a polygon in the plugin menu. After inserting, I press the save button, but only a part of the polygon is saved, the first 2500-2800 points, and a truncated polygon is already created from them.
At the same time, there is another plugin where you can also create Google maps with polygons, but there is no such problem - it builds polygons with more than 40,000 points correctly, but I can’t use this plugin for other reasons.
Tell me where to look for a solution to this problem in the Huge IT Google Map plugin, maybe it's enough to change something in the PHP / JS code? If so, where can this line of code be found in the plugin?