Solution 1:

You might try:

The performance of the proposed scheme, and the dependence of that performance on various parameters, including X and Y, is reported.

This is strictly a personal view — although seeing as this question is regarding style, I do not see how it could be otherwise — but the substitution of the definite article the with the determiner that serves to underscore and thus justify the sense of redundancy. It is made to appear quite deliberate, and thus emphasises a focus on clarity, which is, after all, of great importance in academic and formal writing.