When they had Rory hit the vintage drivers, with a modern golf ball, he was carrying the hickory driver about 225 and the Hogan era steel shafted persimmon about 270. Probably about like what George Bayer was doing with the old balls.
To summarize how quickly the USGA let things slip, a major was won with a persimmon driver after Tiger Woods' debut at Riviera (and Tiger was playing a TM burner plus). So, in the career of one player, we went from having something that resembled traditional golf equipment to the bazookas that are now allowed. The ball followed the drivers.
Here was Bernhard's bag in the 1992 Masters win: This is not a significant upgrade from a premier set in the late 1920s... except for the Ping 1 iron and putter. A ProV wouldn't have made a big difference with these clubs and may have even been sub optimal with too little spin.
When you watch golf from that era, it's very similar, except off the tee.
https://www.youtube.com/watch?v=16phtmtzGPIDriver size was self limiting back then because of the materials.