It should be noted that differences in performance between the compared alternatives often appear when choosing a (too) narrow product perspective, i.e. when studying intermediate products, components, or products that are otherwise very dependent on other products.

Make this lower case.
it should be noted that differences in performance between the compared alternatives often appear when choosing a (too) narrow product perspective, i.e. when studying intermediate products, components, or products that are otherwise very dependent on other products.