Slow download speed - upload is accurate

I am using a balance 210 along with a AP Mini I recently configured this system and I am experiencing a down load of 4 mb and with an upload of 40 mb. The upload is correct as the client has a Giga network connect, which exceeds the capacity of the 210 and AP mini, but I should get a much better download output that what I am currently getting… I must be overlooking or adjusted a setting incorrectly. Could you please provide some recommendations of settings that I should check?