Why speed matters for local search
Most local searches happen on phones. Slow pages lose callers before they see your number, and Google uses Core Web Vitals as a ranking signal.
What the scores mean
LCP is how long the main content takes to appear (aim for under 2.5 seconds). CLS measures how much the page jumps around. TBT is how long the page ignores taps. The usual fixes are smaller images, fewer plugins and better hosting.