Website speed issues -LCP, TTI and TBT

[ihs1]

Hi

i keep getting the below errors but with no coding experience and new to shopify im not sure how to do this. im not sure exactly what it means although the error explains it slightly

please can someone help

[ihs1]

ok thank you

[ihs1]

bithing has happened to my store, why do you say or think we have violated the policy