Performance degradation since version 3.1.0

[eyaldar]

Hi,

I'm seeing a clear performance degradation ever since I upgraded from v2.7.1 -> v3.X
At first I thought it was related to eslint-plugin-import but after trying the eslint-plugin-i version and trying to downgrade to lower versions I saw no difference in performance.
But after trying both v2.7.1 and v3.1.0/v3.5.0 I've seen that the older version is twice as fast for some reason...

Any clue what might be the reason?

[JounQin]

See also #158 and #165

PR welcome to try resolve.exports.

We're using powerful enhanced-resolve which is much slower than original resolve package.

[thatsmydoing]

I was looking at this again, and I think most of the performance issues were fixed in 3.5.1 for us.