Hi everyone, thank you so much for your comments, I can share my timeline:
Apr 25: application submitted
July 4: IRCC requested police certificate
July 10: submitted documents for PC
July 12: Embassy in Mexico received documents according to DHL (emailed them 3 times asking receipt confirmation they never answered)
August 22: I sent extension via webform to tell them Police certificate was in process since I didn’t have a clue about when the PC was in process or not
Sep 14: They updated my tracker saying they received my request and also my background updated as completed (I assume they had everything)
October 14: they confirmed they had police certificate on my tracker but I never saw the document updated on my Express Entry application but my COPR number was already on my tracker
October 20: Received Portal 1 email.
In my experience then took like 3 months to get PC, but totally recommend send webform after 45 days of submitting documents.