Relative strength asks whether an asset is beating the others, not whether it is going up. In a rising market almost everything is up, so what matters is which assets are leading.
Pulse ranks each asset's 30-day return against every other asset in its class on the same day: crypto against crypto, stocks against stocks and metals against metals. The best performer gets the full 15 points and the worst gets zero.
Leaders tend to stay leaders for a while, which is why this is part of the score. It also stops a weak asset from getting a high score just because the whole class is rallying.