I just bought an Emerson Carrera Grande 60" ceiling fan. It is one of their higher grade models with a 212mm x 25mm motor. It has a built-in capacitor in the fan (no pull chain) and it came with a 4 speed wall switch. According to the tech sheet, this fan is supposed to run at 215 RPM at high speed. MIne is running about 130 RPM, far short of what I expected and need for the area I'm using it in. Is the issue with the fan's capacitor or can I correct it with a different wall control?