For citizenship, it is same for all immigration options. After you land as a permanent resident, the faster you could apply for citizenship would be 3 years after you land.
How soon can I get a Canadian passport via residency-by-investment programs?
There are reports that Canada’s immigration programs have suffered delays because of the pandemic. If money is not the problem as an investor, how soon can I expect to get a Canada passport if I apply to one of residency-by-investment programs?
Canada does not (and never did) offer any passport by investment, rather Canada offers permanent residence by investment. Regarding residency-by-investment program for Canada, money is an issue, but the most important issue would be genuine investment; no matter how significant the money, if the investment is not in a genuine investment, then it is unlikely to lead to permanent residency. Delays are subject to change, obviously, but at the moment, an investor could be in Canada in 12 months despite COVID delays. But be careful, the program itself is not a one-stream straightforward program, so chose wisely an attorney who can offer a simple and straightforward way to get your permanent residence by investment; ask questions about the detailed path leading to permanent residency and make sure you have the answers before you sign up with your immigration attorney, or else no matter how much money you have paid, the result may not be the one you expect.