Anyway, for only FPS display..Grab the good old standalone
Rivatuner Statistics Server (which is also included in MSI Afterburner and used to be included in EVGA Precision for On-Screen Display)..Set "Show own statistics" to "ON"..You can change "On-Screen Display zoom" for the FPS to the size you want and move it to anyplace on the screen you want..Should work well.