How to make the simulation faster on a big model with lots of ports

Alcor

BaseModel1.cfx

I have a project like the picture shows, and I need to get a touchstone file and at least 192 far field files on this huge model. But the simulation is quite slow and get progress 1% each day use the default settings. How to edit the solver settings that makes the simulation faster and not lose the accuracy too much (at least 8e-2)?

Thanks so much!

Alcor

The original model has 200MB size and I cannot upload it here. So I upload a model that only has the structure. In fact the ports are all voltage source