Hand is irrelevant because this is just an example. SB reg on a tighter side preflop

His sizing 13,5BB, giving me ~38% odds to call. Can someone explain reasons behind big Squeeze sizing and how both players (caller and PFR) should proceed. If it was UTG/SB 3bet I imagine I suppose to continue QQ+,AJs+ and some low SC because I need to fold ~ 70-80% of my range. I know that he will realize more equity and therefore I should fold less than ~68% based on folding formula but rake/4betting/BB will make it close