Got an answer from support:
You may increase the timeout globally at the app level (but not just for one module specifically).
In order to increase the timeout for the whole app:
1. In the base, you need to setup the http request timeout:
2. Then, in the common data, you would need to configure the module timeout (in milliseconds, so here for example, equivalent to 75 seconds):
(The maximum being 300000 milliseconds, i.e. 5 minutes)
However, note that it doesn’t appear anywhere in the docs and both the VSCode extension as well as the Make.com dev portal will mark the “timeout” property as unsupported.
But it’ll work when you try it on a scenario, the spinner around a module will move much slower.