Play 3e. Note that while Halfings do have -2 Strength and are half the size, their carrying capacity is not halved compared to a human, but their lifting and carrying limits are three-quarters of those of a Medium character.
Thus, a Strength 10 human has a heavy load of up to 100 pounds, and a Strength 8 Halfling has a heavy load of 60.
Ok, so humans are stronger, no big deal, but wait! According to the random height and weight charts in the PHB, an average human male is 5' 9" and weighs 175 pounds. The average halfling male is 3' 3" and weighs 35 pounds.
A character can lift and press weight equal to their maximum load over their head. Thus the male human's max press is less than 60% of their body weight. The male halfling can lift 185% of their body weight.
Physically weaker or super strong for their size?