[🐞] TBT Score Remains Outside the “Good” Range After Using Partytown #644
Description
Describe the bug
Even after implementing Partytown to offload third-party scripts, the Total Blocking Time (TBT) score does not improve to the “Good” range in performance metrics.
Reproduction
https://pagespeed.web.dev/analysis/https-partytown-builder-io-tests-benchmarks-services/34crls4chb?form_factor=mobile
https://pagespeed.web.dev/analysis/https-partytown-builder-io-tests-benchmarks-services/x6wtyyxlmy?form_factor=mobile
Steps to reproduce
1. Use the official Partytown Services Benchmark example.
2. Run the benchmark in Google PageSpeed Insights or Lighthouse.
3. Observe the TBT score in the performance metrics.
No custom setup or additional scripts are required; the issue is reproducible using the provided example setup.
https://partytown.builder.io/tests/benchmarks/services/?fbp=p>m=p&hs=p&ws=p
Browser Info
Chrome
Additional Information
