Not happy with Aztech WL556E Repeater

I am using 10Mbps broandband and through speedtest.com.sg I can verify that my wireless router is serving me that.

When I plug in my Aztech WL556E Repeater, the boost the weak signal that I had in my room no doubt..very happy man...however the bandwidth speed was slow. I am getting like 25-30% of the bandwidth speed ie 2-3Mbps out of 10Mbps.

You dont want to slow down your broadband for sake of stronger signal. Does it make sense?

I am using this repeater Aztech as an AP now. What a waste...