Congratulations on the job.
Sending the job offer will not expedite the process since it does not get you any points. Also, with the job offer, you can apply for a work permit and travel to Canada, a PR is not required per se and there is no need for expediting. This is the rationale of IRCC.
Thank you so much for the reply @legalfalcon .You are the best.Unfortunately the company was more inclined towards PR route than work permit route as they know it will take more time from this point onwards .It seems I have to wait more.Need to do some convincing now as we both were hopeful for expedite processing.