you need a proper scan from a different place using a deep level scanner to see if there are any codes and the fuel trims etc to see if there is any other issue with the car. otherwise performance seems fine, 1 year ago past experience isnt a usefull comparison, lof of things can influence the speed in this tiny little car, including outside temperature, the engine will have less air in higher temperatures, fuel, tyre pressure, weight, uphill downhill, air filter and if there is any problem a proper scan would tell it, meanwhile you need to get the braking system fixed as its dangeorus to drive with these lights on.