Therefore a simple correlation overstates the performance of the model because the correlation gives equal weight to the correspondences in the early steps of the projections where there can be very little error as to the correspondences in the later part of the projection

Can you repeat this sentence, but add in punctuation?
Therefore a simple correlation overstates the performance of the model because the correlation gives equal weight to the correspondences in the early steps of the projections where there can be very little error as to the correspondences in the later part of the projection.