Receiving data GPS

Welcome. I have a question about sending data. At the moment, I have configured the Teltonika GPS to send the data when the direction changes by 5 degrees or 50 m distance and I have the following filters in traccar configurator:

    <entry key='web.path'>./modern2</entry>
    <entry key='web.origin'> * </entry>
    <entry key='filter.enable'>true</entry>
    <entry key='filter.invalid'>true</entry>
    <entry key='filter.zero'>true</entry>
    <entry key='filter.maxSpeed'>160</entry>
    <entry key='filter.static'>true</entry>
    <entry key='time.protocols'>teltonika,osmand</entry>	
    <entry key='coordinates.filter'>true</entry>
    <entry key='coordinates.minError'>5</entry>
    <entry key='coordinates.maxError'>400</entry>
    <entry key='geocoder.reuseDistance'>50</entry> 
    <entry key='event.ignoreDuplicateAlerts'>true</entry>
    <entry key='media.path'>./media</entry>
    <entry key='notificator.types'>web,mail,command</entry>
    <entry key='commands.queueing'>true</entry>
    <entry key='database.ignoreUnknown'>true</entry>
    <entry key='database.changelog'>./schema/changelog-master.xml</entry>

1. What could be the reason that in curves, I receive only a few coordinates, instead of receiving more because the direction angle changes more than 5 degrees?
2. The problem could be in the proxy that passes the data from the external to the internal server where the traccar app is located, or maybe even the traccar app is blocking some data?

Have you done any investigation yourself first? Please provide details.