need help with saved files, thousands of them.

I downloaded a gpx of archeological sites. Turns out there's over 4,000 individual sites. Mostly centered around the 4 corners area. So when I open the map the screen is covered with little red points. 

I can't figure out how to turn this off. And then be able to turn back on when I actually want to find one of the sites.

Edit to add: I talked to a friend who has the same files. On his phone there will be a bubble with a number indicating how many are near that point. zoom in and the bubble splits off, then down into individual sites. That's what I want to accomplish. 

Is it because he uses apple and I'm on a samsung?

Thanks in advance.

Here is a screen shot of what it looks like.