Hello, I am working in a simulation of a microwave dryer in the RF module of COMSOL 5.3a, I made the geometry in solidworks and then imported to the comsol. The model is a box with the material inside and have four microwave rectangular ports. I have the problem that when i try to simulate with frecuency of 1000Hz just to check the model it takes about ten seconds to simulate but when i do it with 915MHz that is the work frecuency it took around ten hours to solve it. I cant find the reason why it takes so long to solve it when i increase the frecuency, I have a Intel i7 4th generation 8gb ram. Thank you very much
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