Reporter in fetch-lists.ts causes significant slowdown

[kdichev]

I have a lot of types and a lot of nodes to be fetched and looks like this kind of reporting slows down the fetching process.

When I remove the reporter locally, I manage to source the data for 10x the time. This might be that my laptop does not have the best hardware but it's definitely faster without the reporter.

Maybe we should find a better way to log what is happening in that function, possibly provide an api to log things if one wants to.

https://github.com/gatsbyjs/gatsby-graphql-toolkit/blob/0ece5cec5c7998150dc3eb360015846c5fa233bf/src/source-nodes/fetch-nodes/fetch-lists.ts#L21&L22

[vladar]

@kdichev Thanks for the feedback! This is on my radar. We will probably remove the reporter or make it optional.