About Growth Rate (DCF)

when we use DCF to find the fair value in Gordon model the main problem is that “the narrower between Required rate and Growth Rate” in the denominator which may result an inappropriate value (Too High or Low).

The second point about Growth Rate it’s duplicated by multiplied in the numerator and subtracted in the denominator from the Required Rate of return.

So,the Growth Rate make a big problem in the DDM. I ask for any body have an alternative factor instead of Growth Rate.?