I checked their attack rate on flash and was surprised by the result.
On flash, it's exactly 2.5 seconds, the same rate as Gorillon and Yeti!
On mobile (I downloaded youtubes), it is 2.3-2.4 seconds (rounded decimals to the nearest tenth). Templars are worse than I thought.
On Steam, it is precisely 2.0 seconds. devs knew they are bad.