You can try to improve the performance by enabling two optimizations for OBD connection.
- Go to ‘Garage->Connections’ and select your OBD2 connection settings
The ‘Use Multipid Request’ will increase the data rate on newer vehicles that have a CAN bus. It is disabled by default since it will slow down connection time on older (<07) vehicles.
The ‘Request Only First Reply’ option will also increase the data rate on modern vehicles by requesting information from first available PCM. Many values are available in multiple PCMs and when this setting is disabled, the ELM327 adapter will wait until all PCMs have replied with the data. Again, this setting has no improvement on older (<07) vehicles.