The Jays offense was absolutely brutal in April, due to a combination of slumps, slow starts, injuries (Varsho), or fringe big leaguers with no pop getting everyday AB's (Wagner, Roden). From May-onwards, it's been a substantial increase in overall offensive performance.
March/April
85 wRC+ (24th in MLB)
104 Runs (26th in MLB)
.110 ISO (29th in MLB)
19 Home Runs (29th in MLB)
19.2 K% (t-2nd in MLB)
8.5 BB% (20th in MLB)
May-onwards
124 wRC+ (1st in MLB)
472 Runs (1st in MLB)
.174 ISO (8th in MLB)
114 Home Runs (9th in MLB)
16.3 K% (1st in MLB)
8.7 BB% (t-6th)
As mentioned, a healthy Santander and a healthier Varsho probably reduce the team's contact rates over that span while increasing the power, but when you consider the main beneficiaries of the playing time in place of Tony and Varsho were guys like Straw, Clement, etc, I think I would have preferred the added pop. Or at least I'd prefer it in a playoff setting.