I looked all points you reported.
1st of all, only 5 stupid things in a set, it's not too bad...
But maybe you didn't report all stupid points of the set..?
On 0-1, 30-30 / On 0-1, 40-40: actually, the CPU doesn't see 2 opponents ; he still plays singles, and depending of where he's aiming and the situation, he picks one of the 2 opponents, and still use Singles decision process to decide where to aim ; that's why he can only hit in the hole if he's lucky ; ie: the best shot against the opponent on baseline will often end in the racket of the opponent at the net, not in the hole between them 2 . I'll see if I can easily make him see the hole or not.
On 4-4, first point: yup, I know these ones... I don't like them too much, but I don't think I'll change them... They will go away in TE4 though, where the precision & ball physics system will get a complete re-haul to prevent these kinds of unrealistic situations (and some other ones as well)
On 5-5, 30-15: hum, I'm not sure to understand what is the problem ; is it the backhand the upper-right CPU does while standing on the service line ? It's not a slow shot, it's a normal speed shot, and it's not too stupid to do that, as the answer of the opponent is a poor volley ; the real mistake is on his next shot : the volley is badly produced and slightly crossed to the right where it should have gone to the left to avoid the volleyer ; it's not really unrealistic though as itself, but it depends of the frequency of the mistake...
On 5-6, 15-0: I understand what you're talking about, but I don't see it in that point ; maybe you noted down the wrong score ? I can see your human opponent doing some stupid stuff though, there...
On 5-6, 2nd deuce: hum, on this one, I'm not sure it's such an easy volley : look the CPU, he's still moving a lot during the volley, so it's hard to center the ball & be successful. I'll look the calculations in detail, though, to check if it needs some tunings or not.
If you have time, note down the stupid stuff in 1st set as well, I'll look these ones as well..!