I recently bought a 5 gallon hydrangea (lacecap) that was listed as
sun/part-shade tolerant. I planted it in a spot that gets a fair amount
of sun and it has been drooping in the middle of the day even after I
give it plenty of water.

I am wondering if I should transplant it or try to give the plant some
time to 'adapt' to the location I put it in; do plants adapt to their
light exposure?