CQG does not have delayed data, as far as we know, for a reduced price.
Esiganl only provides their own data for charting, but it is not data that you can execute on. You would need an additional data that you need to use to execute the trades. Esiganl uses CQG and Rithmic.
Rithmic does offer Top of Book for CME which could save on exchange data. Top of Book for the entire CME is three dollars. Keep in mind that the exchange has to offer top of the book. CME offers it and ICE does not.
While we understand that you wish to save funds, we also want to emphasize that we do not recommend to have delayed data on your trading platform, because this will not allow you to look at your risk management in real time. You always want to see where you stand in terms of equity and risk.
Optimus Trading Support