How to Split Lines for a Large Dataset

[torearth]

I have been given 12 .csv files (each representing a different month) that I have converted to points, ran the point to line tool, and now I want to remove sections of the lines that have points that are greater than 200km apart from one another. 

In order to do this, I was thinking of running the "Split Line at Point" tool for each line feature class. However, the point data that correlates to the specific month that was used to create the line has anywhere up to 10 million points. 

Any ideas on how to reduce the geoprocessing time or an alternative method that can be used to remove sections of lines that have points that are >200km apart from one another? 

Any ideas would be appreciated, thanks! 

[SeaRM]

Maybe you can try to split your lines at All vertices. Then, select the segments (output split lines) with the length more than 200km and delete them. After that, dissolve the rest of split lines again by the same field into continuous lines as the input lines were.