I'm guessing this is your experience - was this more than a couple of months ago? We made some changes about ~6-8 weeks ago to how we order jobs to prioritize responsive companies much more than they were in the past. We also use responsiveness as an input to the "Likely To Accept" score shown for each job (here's a screenshot of a posting from my own prod-testing account: https://imgur.com/wSmGCEL).