Hi,
In our SDK you should find an option called: Teltonika device options, in there you will see a lot of selection that could be changed, but the thing that could be causing you your issue is called: Teltonika core packages and Teltonika core networking packages. You can try disabling other packages too if you feel a need to disable them.
Hopefully, that's simple enough, because RUT955 and RUTX SDK's haven't changed a lot from each other.
EB.