miniatures too little in grid view secondary monitor 32"

hi to everyone, i use Lightroom Classic with dual monitor (a 32"). In secondary monitor, grid view, the miniatures are too little, even at the bigger size selected from the lower right switch. Is there a tweak for bypass the switch and make miniatures bigger? At the bigger size, there are 7 miniatures in a row, i need 5 or 6, 7 in a row are too much.

Thanks