It can do that with its HVAP rounds. It's a good tank.
The problem isn't the 76mm: it's the uparmouring upgrade it's bundled with. That upgrade makes standard Shermans able to reliably beat enemy medium tanks, leaving the 76mm without a niche to fill.
Those two abilites tread on each other's toes hard and shouldn't really be in the same commander.
Problem is HVAP rounds are too inaccurate, have a reduced fire rate and not enough pen at medium range, two of them with HVAP are still largely ineffective against panthers or tigers, not to mention at that given moment you better have the right round equipped if not you have to switch and its a dead tank. Ai rounds also suck but id be happy with them present if the HVAP did something more.
EDIT by dead tank i mean its inna state of purgatory, should it really have a longer shot timer on HVAP, when there is already a coold down on timer on switching rounds like?