Coming from the Bethesda games, I also remember not having a great time with the classics at first. The gameplay took a while to grow on me, and my lack of game knowledge led to rather slow starts.
I had a rough time with the beginning of Fallout 2 in particular, primarily because I had no idea what I was doing and created a terrible character that would immediately crumble upon being bitten by a giant ant. I had to spend the first 8-10 hours correcting them.
I started having more fun with both Fallout 1 and 2 as time went on, though. The pace picked up significantly as I learned more about how to play the game, and I eventually started having a fair amount of fun with the combat mechanics as well.
If the fancy strikes you, I would recommend eventually going back to it and giving it another go. The game feels better as more time elapses, if my experience is anything to go by.