ITC/IPS: check if devices can handle higher scan rates

As an instrument scientist I would like the numbers from my devices to come back as frequently as the device will allow.

After a discussion with Gareth, these devices should be able to handle a higher scan rate than they are currently using (achieved by eliminating unnecessary waits in the comms protocol).

Notes:
- This ticket can only be done if we have access to the hardware
- We may be able to do this while setting up the magnet on ZOOM