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OPA462: P-SPICE for TI Simulation Help

Part Number: OPA462


I am trying to run a simulation which is of a circuit found in

The circuit is found in figure A-3

However when I try and run the simulation it is incredibly slow to the point of being unusable. Is there anyway to speed up the simulation time? Do I have my simulation settings wrong potentially? 

I am stimulating the circuit with a 1khz 5v pk-pk signal. My simulation settings are 

Time domain(Transient): 1000ns 

Maximum step size 10ns

everything else as default. 

Thanks so much.