[🐞] TBT Score Remains Outside the “Good” Range After Using Partytown

[hnsxxscyx]

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&gtm=p&hs=p&ws=p

Browser Info

Chrome

Additional Information