The new trams are slower. It's not an illusion. All the new vehicles, buses, subway trains and new trams have the new style of doors which are much slower to close. It's a safety feature likely.
Trams are great at moving more people more comfortably but for some reason the TTC treats trams not as a true mode of transport but of some leisurely service for tourists. People need to get from A to B as fast as possible. The city and the TTC should have looked at removing some close stops on the tram routes to help compensate. There is no need to stop every 100m and spend 1-2 minutes at each stop. It's much better to have fewer stops and have more people at each stop. St. Clair is a perfect example of too many stops, especially between Dufferin and Spadina. There are stops basically every 100-150m. Its beyond ridiculous. Why is there a Vaughan Rd. stop when Bathurst is right there? Why is there Tweedsmuir stop needed when St. Clair W. station is 50m away and Spadina is another 100m in other direction.
Another annoying thing is that Toronto tram drivers always drive like they are strolling. Trams often go very slow when there is no traffic (512, 504/514, 509/510). They stop at all switches/crossings and them go through them ultra slow. These switches were rebuilt recently, why the slow order on them? I'm not saying to blast through at 50km/hr, but they should be easily able to go through at 20-30km/hr.