Description of the issue:

When the Alloy Kiln can't work it ticks very high.

This user has 4 Alloy Kilns, all ticking at different amounts due to what is inside them.

The empty kiln is ticking at 2m/s

You can see the measurement behind in the red.

This is the perfect testbed for this-

Versions & Modlist

Mod list- https://minecraft.curseforge.com/projects/towncraft

ImmersiveEngineering-0.12-80.jar

Those aren't milliseconds (ms), those are microseconds (sometimes us, usually μs). So the empty kiln is taking 0.002 ms, which is perfectly fine. If those were milliseconds every server tick would take at least one second.
The tick times all seem reasonable, if you still think something is wrong include proper profiling data (nps files).

You are right, that was a poor report, I will post a new one that more clearly communicates this issue.