Water temperature plays a role but I think the individual fish plays an even bigger role. I don't fish for, or even where smallies are much. I've caught 3 this year, all on the same day, in 52 degree water. 1 of them fought like it was possessed. The other 2 were basically bricks. My PB smallie (6 pounds) 40 years ago fought like it was possessed. It jumped multiple times, ran under the boat on a long run, then when I thought it was ready it took off again when it saw the net. A kid I had with me that day caught an 8 pound smallie. It basically just came to the boat.
My PB largemouth (10.25) was really strong, but not fast at all. It pulled like a submarine. It didn't "jump". It would just stick it head out of the water and kinda sit there shaking it's mouth. It looked like it was in slow motion. It freaked out when it saw the net.
My best (LM) of 2022 (7 lbs 13 ounces) was basically dead weight.
My PB spot (4 lbs 4 ounces, Dec 2022) was like a jet powered submarine. It was the day I bought my boat, in 52 degree water. I thought I had tail snagged a carp or something. Like others have said, I can't imagine an 8 pound spot.