I had 170 deaths and around 6k kills in POIs (NA and EU summed).
Lag is an issue, sometimes I was headshoting with plasma some rocket Zirax 4 times without doing damage. As about PVP POIs, I ended waiting 10 seconds at every corner to minimize lag, otherwise statistically I was killing myself once at every two POIs from the lagged plasma.
Also, check this bug report on official forums: