Paul was absolutely pro-Torah. It was his life. If he was not, he would never have been accepted among the believers in Jerusalem, who are also pro-Torah. Zealous for the Torah!
Then they [the believers in Jerusalem] said to Paul: "You see, brother, how many thousands of Jews have believed, and all of them are zealous for the Torah. Acts 21:20
Our modern translations have mangled Paul's already difficult language in his letters to the Gentiles. Paul refers to the law of the flesh (sin) and the law of the Spirit (Torah). But anti-Torah and Anti-Jewish interpretations by Christians have destroyed his point in many cases. This is a very ancient misunderstanding of Paul. Even in his day, rumors were circulating that he was teaching to forsake Moses. A 2000 year old rumor, still circulating today.
But they are under the impression that you teach all the Jews who live among the Gentiles to forsake Moses, telling them not to circumcise their children or observe our customs. Acts 21:21
Paul did not teach the Jews or Gentiles to forsake Moses (God forbid), but rumors were circulating in Jerusalem that he was teaching Jews to forsake Moses and not perform the 8th day circumcision on children. This is a false testimony.
Paul participates in the Nazarite vow (Numbers 6:1–21) to demonstrate his adherence to the Torah spoken by the mouth of God.
Therefore do what we advise you. There are four men with us who have taken a vow. Take these men, purify yourself along with them, and pay their expenses so they can have their heads shaved. Then everyone will know that there is no truth to these rumors about you, but that you also live in obedience to the Law. Acts 21:23
Paul did abandon the Pharisaical practices, which Yeshua called hypocritical. To other Pharisees, made him look lawless. But Paul made a practice of obeying the commands of God over the traditions of the elders. There were numerous attempts on his life for this. Peter and the apostles also followed this practice:
But Peter and the apostles answered, “We must obey God rather than men. Acts 5:29
They loved the Torah. Yeshua is the Torah made flesh.