Oh spiders are actually incredibly fantastic creatures!
There are some spiders which can lift nearly double their weight, or even upwards of 15 times! Just like some ants. Some, like jumping spiders, for their height can jump what would be the equivalent of a fit human athlete jumping 10 stories!
Some, like most instincts, have a distinct sixth danger sense which allows them to avoid danger if fast enough. Others are so fast that they need not worry about danger. Did you know that a single strand of a spider's webbing, if magnified to human standards, would be stronger than 50 strands of military grade cable? A single strand of webbing, in fact, could stop a jet fighter going at full speed. And it wouldn't snap because of its elasticity.