Canada selects the highest-ranking candidates in its express entry rounds of invitations. If your scores are low, you can easily increase them by retaking the IELTS exam, getting a PNP nomination, having a job offer, or switching the primary applicant. Express Entry rounds of invitations are conducted every two weeks. The government of Canada ranks applicants based on various parameters such as age, work experience, education, IELTS, etc. Your Canada PR point depends on these factors, so ensure you get the highest scores to get the invitation.