I have an older close based model . You should get an olson blade. the wider the blade the less tpi(tooth per inch). Prob a 3/8" skip tooth will work so you can make those corners. my 1st saw I cussed for 4 months until I was told I had a metal cutting blade on it. . I had a half dozen blades hangin in the basement and a water leak dribbled on them makin a rusty mess.
One by one I cleaned them oiled them & they work fine , so its worth it to invest in a good blades.
Next check your guide (cooling) blocks that help the blade track when under pressure. Once they are adjusted your golden. Band saws take a lot of tweekin but once you get used to it its easy.I also had a buddy that was having trouble with his band saw . I went over his place.... the blade was upside down. A mind is a terrible thing to waste.