Weak gravitational lensing surveys, which measure the subtle distortion of background galaxy shapes by foreground mass concentrations, predict a specific abundance and distribution of lensing "peaks"—localized maxima in the convergence map that correspond to massive structures like galaxy clusters and superclusters. However, observations from surveys like the Kilo-Degree Survey (KiDS) and the Dark Energy Survey (DES) consistently find fewer high-amplitude lensing peaks than predicted by Lambda-CDM simulations, particularly at intermediate mass scales (Dietrich & Hartlap 2010; Hamana et al. 2020). This deficit suggests either that massive structures are less abundant than expected, that the matter distribution is smoother than predicted, or that the effective gravitational lensing strength is weaker than standard GR predicts. Lambda-CDM struggles with this tension because it relies on cold dark matter halos to produce the expected peak abundance, and reducing the number of peaks requires either lowering the matter density parameter or the amplitude of fluctuations, both of which worsen other tensions like the S8 discrepancy.