ezroolz Hey, right now Leap is displaying scores that are being based on lab data, rather than field data which is used by Google Search Console. Leap is displaying this less accuruate data as we do not currently have enough data on your users to provide accurate field data results. A ? in Leap indicates that more data is required in order to generate a score.
It's true that core web vital scores can impact your ranking, however the margin for this is very small. Site speed accounts for less than 2% of ranking factors. If you are looking to improve your ranking with Google, you'll want to focus on consistently publishing high quality content in-line with the new spam and content policies, user engagement, and SEO practicies.