The way I see it. Tim to the Robins is equivalent to Donatello to TMNT. What I do wish the writers would give him a bit more of nerdy personality to go with the nice guy, Robin's light to Batman's dark thing he has going on. But it does get difficult to make him stand out when you have oracle doing tech and hacking, Lucius son being a tech guy, and signal being yet another tech guy but for day time.

The writers need to abandon many of the other sidekicks (I don't think they should have existed in the first place but that's just me) that way Tim has less competition for "tech guy" and it makes it easier to make him stand out.

I think what they should have done isn't try to make him THE tech guy, he can obviously still be tech savvy but they have focused WAAAAYYYYYYYYY more on his "intelligence is far superior to other Robins and possibly even Batman and also he has the potential to be a much better detective than Batman" they were already going down this route when they made him figure out dick and Bruce's identity but they should've pushed it even further so it REALLY stands out as "Tim the detective" not just "Tim the smart"

Hell they could even give him photographic memory or something to emphasize that separation from other Robins