The first 5-year performance of VGRO should be somewhere between -3% and +28% ;-p . I would be very happy with a long-term rate of return of 5% per year.
For the last 9 years S&P500 (VFV) performed significantly better than MSCI All Country ex-US (+302% vs. 115%) . Mean reversion will eventually correct this. --> VGRO > VFV over the long term in my opinion. Time will tell if true