Theoretically, the best V-angle for a V10 is 72°. Like two inline-5 mated together, there is no vibration in vertical and transverse directions, but there is vibration from end to end of the engine, thus require a balancer shaft installed in the V-valley for best balance. However, there is no vibration between bank and bank because pistons in both banks are in the same positions.
V10's have never been a popular configuration for Road cars a V12 is almost as cheap to build and needs no balancer. The only real use of the V10 has been sporadic useage in F1 where the V10 splits the difference between the Compactness and torque of a V8 and the Power of a V11