For the people with ray glitches, have you tried disabling advanced shadowing?

For routing units: if you choose your general, its special function (F key iirc) is to rally troops nearby him. So... rallying will be so clumsy and hard to do now...

Cav charges are too powerful, you send a cav behind routing units and they die in... 1-2 seconds? Swiping was a joke compared with this. You back-charge cav against a unit of spears (specially if they are already engaged with another unit) and they simply get destroyed at once. I hope this has more to do with the obvious valour and energy differences btw the two armies (romans are clearly weaker in this demo).