Ran out of CPU power?

I was bouncing an orchestral track that I had been working on and I kept getting a Ran out of CPU power interference. I was only using a few Eq's and one main Convolution reverb for the whole track.. My question is: if I'm only using one verb but sending 30 different audio tracks to that one verb is it more taxing the more tracks you send to that one reverb? Or should it matter?



I am deeply troubled by this and would appreciate your input, thanks.