lighthouserc.json

{
  "ci": {
    "collect": {
      "numberOfRuns": 5
    },
    "assert": {
      "preset": "lighthouse:recommended",
      "assertions": {
        "viewport": "error",
        "first-contentful-paint": [
          "error",
          { "maxNumericValue": 2000, "aggregationMethod": "optimistic" }
        ],
        "interactive": [
          "error",
          { "maxNumericValue": 2000, "aggregationMethod": "optimistic" }
        ],
        "max-potential-fid": "off",
        "total-blocking-time": ["error", { "maxNumericValue": 199 }],
        "cumulative-layout-shift": [
          "error",
          { "maxNumericValue": 0, "aggregationMethod": "optimistic" }
        ],
        "categories:performance": [
          "error",
          { "minScore": 1, "aggregationMethod": "optimistic" }
        ],
        "categories:accessibility": [
          "error",
          { "minScore": 1, "aggregationMethod": "optimistic" }
        ],
        "resource-summary:script:size": ["error", { "maxNumericValue": 50000 }],
        "resource-summary:total:size": ["error", { "maxNumericValue": 300000 }],
        "resource-summary:font:count": ["error", { "maxNumericValue": 0 }],
        "resource-summary:third-party:count": [
          "error",
          { "maxNumericValue": 0 }
        ],
        "installable-manifest": "off",
        "is-crawlable": "off",
        "maskable-icon": "off",
        "works-offline": "off",
        "service-worker": "off",
        "splash-screen": "off",
        "themed-omnibox": "off",
        "offline-start-url": "off",
        "csp-xss": "off",
        "canonical": "off"
      }
    }
  }
}