V_max vs. SH mass for 10 × B20 simulations (left panel), 1 × R15 (central panel), and 1 × RF18 (right panel), for all SHs (except for BCGs) with a projected distance (R <  0.15R_vir). The cyan, pink, black, and magenta lines refer to the 1 × R15, 1 × RF18, 10 × B20, and 1 × B20 simulations, respectively. The relation from Bergamini et al. (2019) is over-plotted in blue. We report data for 10 × B20 simulations (black solid line), a 1 × R15 simulation subset of 10 × B20 regions (solid cyan line), a 1 × RF18 simulation subset of 10 × B20 regions (pink line), and 1xf_SH (magenta line), for SHs with projected distances < 0.15R_vir (right panel). We compare our high-resolution simulations with simulated data points of high-resolution Hydrangea simulations (Bahé et al. 2022) (red).