So actually lets talk about the T6X in terms of its ability to accelerate.
It lists the torque on the site as
Maximum torque : 27 Nm
I'm guessing that at the output shaft of the motor.
By way of comparison
Zero-DS : 92Nm
Zero-SR : 144Nm
Zero-DS : 110Nm
Zero-SR : 157Nm
So the Torx bike will be four times slower off the lights than the Zero-DS you owned.
I do a comparison with ICE bikes, but the gearbox complicates things.
The H2R produces the same torque as a 2017 Zero-SR, but is substantially quicker for example.
At the end of the day, if you are okay with a cheap run about bike, then thats fine.
Personally I could not own one, I found the Zero-ZF9 a little bit lacking in guts for my personal taste, and the Torx looks worse.
There is no way in hell I'd spend my money on the Torx bike.