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As long as the blade isn't getting hot, your OK. Hot blades indicate too fast of a feed or worn teeth. Kind of a quick test that I use, is spray the blade with a lubricant. If it smokes , your too fast or dull. 14 TPI sounds right for .125. Should cut it in about 1 minute or less. The top and bottom may take the most time, but when it hits the sidewalls, it should drop right through.
Also, look at where the blade is welded. Make sure that the weld is ground flush or slightly ground in. If not, it will make the blade catch, skip and start bouncing. This will end up ripping teeth off and trashing a good blade. Not sure of the quaality of a H/F blade, but I use Noton Bi-metals on my bandsaw. Lasts forever.
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