LTspice Transient Simulation with external components
Your stop time is 0.5 s according to the .tran statement on the schematics. This is a very very long time for a transient simulation of this type. I suggest you set the stop time to f.ex. 10 ms giving 4 periods of the 400 Hz sinus you are using as excitation. 

The first Opamp probably works better if you connect it to a power supply. At the moment I would not expect it to output anything. This is something that is normally omitted in a principal schematics like the one on top. This is done to improve readability. But you still have to connect it to make the circuit work. Both in simulation and in the real world.