When I release a charged Stormbound Inscription on a Shadowmetal Fortress Blade, there's about a second of lag. The Tainted Inscription does not lag. I haven't tried the Volcanic Inscription.
The lag only lasts a second, but it could be annoying if you're trying to use it a lot, or in some sort of PVP setting.

Ill take a look at this. I did some more testing and yeah, I'm getting a lag spike too.

Oh yeah, I'm using version 7.5.

This also happens with all three blades... Thaumium, Voidmetal, and Shadowmetal.

Closed due to inscriptions being redesigned.