I can't install nvidia 173.14 (Geforce FX5200) driver on Debian 9 Stretch

Hello, I downloaded LinuxCNC Uspace 2.7.0 Debian 9 Stretch and installed it without a problem.
My pc is:
Asus P4s800D-X
Pentium 4 3GHZ
Nvidia Geforce FX5200 NV14 128MB
1 GB DDR400 x 2 = 2GB
Samsung 80GB IDE HDD
PS2 keyboard
USB mouse
ATX 250W power supply

The latency is very high, it starts at 36000ns and after a few minutes it goes to over 120000ns.
The installation puts the nouveau driver, I uninstalled it and the packages attached to it, when I try to install the nvidia 173.14 driver, it goes up to 100% and displays a kernel incompatibility message.
I believe that using the nvidia driver, the latency should drop a lot.
At sinaptic there is no open / generic nvidia driver for this video card model, only nouveau.
Does anyone know how I can solve?
Thank you.

Any suggestions on what I can do to reduce latency? I disabled everything possible in the BIOS, but it's no use ...
Thanks for reply.

I will use parallel port.
Ok I will put the photos here, is that the forum did not allow me to post the photos, but I will resolve this of the photos.
The files are 'amd64', will they work with my card / processor?
I did not find in the topic of the link you informed, how do I install them? sudo apt-get install linux-headers-4.14.174-rtai-amd64_4.14.174-rtai-amd64-3_amd64.deb?
Thank you again.

So, I was trying to use wheezy too, the latency was very high.
I was also unable to access the repositories to update Debian.