Ratio between values found using the simulation with (original SIDES) and without (randomized positions) clustering for the following performance metrics: 5σ classical confusion limit (solid line), 50% completeness flux density (dotted line), and 80% completeness flux density (dashed line). The intensity is in blue and the polarization in dark red. The intensity is discussed in Sect. 4.2 and the polarization in Sect. 5.3.