[Internet] Is FIDO Upgrade actually a downgrade?

I have FIDO Internet for a few years, 60Mbps/10Mbps and on 13th I used an offer and "upgraded" to 150Mbps/15Mbps for 50% off the regular rate for 12 months. Well, since then, I used Speedtest at different times of the day and with different Servers and I get only 40-55 Mbps/ 15 Mbps. So, have I been taken for a ride? I am in Toronto and not at a remote location. How is the experience of other FIDO Internet users? I am posting this to Rogers Forum as FIDO uses Rogers and there is no separate forum for FIDO in DSLReports.