Razor's new passive shows the strike interval as a cooldown in the tooltip. This cooldown is affected by cooldown reductions, but the strike interval stays the same regardless. Same goes for resetting the cooldown. When you use Refresher, the cooldown on the icon resets, but the actual strike interval is unaffected and not refreshed.

It should either behave like a regular cooldown and be fully affected by cooldown reductions (percentage and flat, e.g. Chakra Magic/Time Dilation) and cooldown resets, or it should fully ignore any cooldown changing effect (i.e. work like for example Riki's Cloak and Dagger).

Also, currently, the -3s strike interval talent does not change the cooldown value in the tooltip. It still shows 5 with the talent, instead of updating to 2.