Hi,
I have an old TomTom One X , i decided to upgrade the navcore v8.562 to navcore v9.510(http://www.navitotal.com/navcores-9-for-tomtom-devices-f124/universal-navcore-installer-t14168.html) and also upgrade the map to Iberia_940_5965.
With the new navcore, i feel it's too slow compared with the old navcore.
Any suggestions?