chromium shows question marks for more than 1350 costumes

[slyi]

Expected Behavior

All costumes load correctly on chromium https://scratch.mit.edu/projects/1205610476/

Actual Behavior

chromium fails to load more 1350 costumes due limit pending network requests

Steps to Reproduce

Save a project with more than 1350 costumes

System Details

This occurs on all chromium based browsers (chrome, edge, brave etc...) for sb3 saved projects. Works fine on firefox and safari.
Scratch VM creates async web request to download the 2048 images but chromium limits pending web requests to ~25mb (6000 requests with an avg header size [KAvgBytesPerOutstandingRequest] of 4400 bytes)
Turbowarp works as batchs the downloads. This is a regression from scratch 2.0