Nanocom data and steering shake ay 70 km/h

Hi guys,
I just got a Nanocom for my vehicle, a 2001 Discovery 2 V8 automatic, and I have a couple of questions:

At idle engine speed reads 840 and engine load 23.0%

Air load: 0.00
Idle air: 292.13
Idle load air: 0.03
Are these figures OK?

On one of the pages it says also:
ABS - OFF
Traction control: OFF
SRS: OFF
Are these OK to say this?

TC seems to work and lights up when one of the tires slips on soft ground. ABS also seems to work when I test it.

Furthermore, I have also had all four front ball joints changed two weeks ago and ever since then the steering wheel has developed a nasty shake once I hit 70 km/h and kind of abates around 80 km/h. However, sometimes it disappears. This is very rare but it has happened. Unfortunately I am over 500 km away from the guy who did the work so cannot take the car in. Additionally there is the COVID-19 situation in the country so self-isolation is the name of the game these days.

Any pointers and ideas would be greatly appreciated.

Thanks a million.
Regards
Dule

The shake could be wheel balance previously hidden by bad ball joints.
No idea on nano figures for a v8!

Get an alignment.

Thanks guys,
The numbers kind of confuse me.

I'll redo balancing of all tires and an alignment check as well once I can get out of the house,
Regards
Dule