I have a Draytek force 2800VG ADSL2 +, I have the following problem:

Set up this router 2800VG ADSL2 + to the Bridge mode, I have a ASUS WL500GP to the functions of router. The problem is that with the Draytek 2800VG ADSL2 + Bridge in the speed mode is only 8,31 Mbps Mbps with a SpeedTouch 546v6 in Bridge mode with 10,25 Mbps.

Note: I refer to the speed of downloading files.