This was message from 2018:
Currently you can not increase the timeout period for the "Try-it out" functionality in SwaggerHub. We do have an open issue internally to provide a way to be able to do this.
Was this issue resolved since then? Can we increase timeout period for the Try it out functionality?
Since 2019 the request timeout was increased from 10s to 30s.
According to current documentation the request timeout is not configurable and is set to:
To check OpenAPI 3.0 available features, please refer here.
Do you need to increase it even more? What value will suit you?