What are you subbing for single wield? /DRG?
/NIN can cap delay fairly easy while single axle requires a dancer.
That TP bonus is pretty insane though!
While it's generally feel like fencer build without dnc is much slower, it doesn't mean as much as you think in this specific scenario, because of several reasons:
1. While 80% reduction is 63% faster than 68.75% reduction, Tp gain is only like 10% faster (assuming tp bonus having 95% accuracy). That's because single wielding doesn't have tp reduction like dual wield.
2. White damage during AM3 is higher on Fencer build even that delay reduction is much worse.
3. Fencer build is much more flexible, because you don't need top acc sets to cap acc with non ilvl offhand.
4. You actually have option to go /dnc. Even gimped 5% haste samba will increase your speed by 19% and make Fencer build better in every aspect.
5. Offhand provides nothing more than 1000tp, which normally is huge, but for WAR that's countered with TP bonus from Fencer and 7% WSD from blurred shield.
I'm not gonna even talk about scenario with haste samba from main DNC, because then Fencer build is significantly ahead (even that you still won't cap 80% delay).