The math used by the government to calculate its ability to meet its deadlines is.... If the Canadian population could hear what the government has said, they would be disgusted. It meets the deadline in only 46% of the cases, but it ignores 20% of the most complex cases.
However, the government doesn't know which cases in the application process are in that 20%, so that 46% figure of meeting the deadline is complete fiction. The government has no idea of how many people meet that deadline.