Football Manager Mobile 2018 contains two match engines, one of which – the ‘Enhanced’ engine - requires significantly greater processing power. The ‘Original’ match engine is also included for those with less powerful devices.
On first run, the game will detect which match engine your device is best suited to using and select this for you. If you would like to change which Match Engine your device uses, you can do this when starting a career or from the Starting Configuration view of the Preferences screen. Any change only takes effect in a fresh career.