Complex sentence: The album did far better internationally as an EMI label release where Ross had been signed directly since 1981, however, Ross' relationship with EMI dates back to the beginning of her international career since they distributed Motown.
Split into simpler sentences: The album did far better internationally as an EMI label release where Ross had been signed directly since 1981. However, Ross' relationship with EMI dates back to the beginning of her international career since they distributed Motown.