I just installed a fresh 40 tooth blade (I don't remember the new blade brand name) into my table saw. I was cutting some hickory and it was burning so I figured it was time to sharpen/clean. But when I was cutting that same hickory at the same rate and everything else I noticed it struggled to cut. The saw has a 15A motor and has never had this problem before.
And I mean bog down; it was dying, I swear. So I stop feeding it and ran back up and fed much, much slower.
The stock was only a 1/2" thick. The blade was 3/8" above the wood and I do what I have always done when cutting (which is pretty much how school taught me last year when in wood-shop).
I did not see any wobble (or at least more than usual, there was always a small amount but never hurt the performance). So I don't know what is happening but I have to feed pretty darn slow compared to before. It may be the cold, since it is winter and I have a shed without heat, but it always just spun right up and had no issue.
Note: if I had to guess on feed rate (And I mean GUESS) I would say hard woods take me 4 seconds for a 1" board without bog (now its like 5-7.... ) and softwoods like 2 seconds for a 1" board.