No, more than likely not adjusted properly. Make sure rim is true and straight. Make sure the rim is centered between the pads, same distance frome each side of the braking surface. You can tighten the brakes (increase tension) by turning the barrel at the top of the brake caliper. Should be 3 mm form the rim on each side. I believe the thickenss of a penny away. If the rim is not true, it can affect the peformance of the brake system.

Although my stock pads were a little on the weak side. Some low end calipers on my $1000 Lemond. I got myh mone out fo them then replaced with Ultegra brake shoes. I ditched the replaceable pad system since they are $30 for replacement pads. Replace he entire shoe for $10 (Ultegra shoes). Brakes are a bit more effective than the stock pads.