Will different save options cause different Spectre simulation time?

Hi,

I’m using Spectre in ADE L to run simulation. When setting ‘selected’ in ‘Select signals to output(save)’, it elapsed about 135 seconds. Setting ‘allpub’, it elapsed about 172 seconds. Of course, the larger the circuit is, the more time difference between them. 

Does it make sense? In my opinion, no matter which setting I choose, the simulation should cover the whole circuit, or just result from disk I/O?

Thanks!