Motion Blur

I am working on some aimation. Two character whit hair and a ground whit grass, a Dog and a Kid running.
I have 2X 1080 and a i9 at the office. As soon as I activate Motion Blur, I have a cuda error.
If i am lucky, and the render start, whit no motion blur 3 minutes render time, whit motion blur, 27 hrs and going up, now it show 31hrs.and its only the dog, and finaly crash.

at home I have a RTX2060, and I only get Cuda error if I use optix.
Motion blur are always a nightmare.

windows 10
any blender version .
Did I do something wrong. This cuda is killing me.