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With the "Tracker Data Filter" data filtration plugin you can filter data from trackers by specified criteria. That allows you to cut the number of records in the database and respectively speed up the report generation. That improves the appearance of the route on the map when the tracker has difficulties receiving the signal from the GPS.
The basic rules allow verifying date, time, and coordinates validity, removing points with unessential changes.
The module filters for each tracker individually, discerning them by device unique identifier. With certain rules enabled the module stores information about the last received route point in its memory. That information is not kept (reset) when the application restarts or its settings are modified.