Using one global affiliate link is leaking half your commissions.

Using one global affiliate link is leaking half your commissions.
Your audience isn't in one country. A US-only program link shown to a viewer in Germany earns you exactly zero, even though they clicked and bought.
Geo-routing tools (or even a single bridge page that redirects by region) recover those lost sales. Most creators never check what share of their traffic is international.
That "low converting" link might be converting fine — to a country you don't get paid for.
Do you even know your traffic's geo split?