what do you think of the racial techs?

[Egregius]

I'd have to second that temporal tech is meant for late-game. It's quite expensive to research too.

But consider the shield-depletion power of their weapons, it doesn't beat shield-depleters in power, but at least it has a use afterwards.
And their other weapons are as dangerous as warp weapons if not a tad more powerfull (if I recall correctly).

It's just a pity it has little use early game where speed matters, but that fits with the idea of the tech.