I think you can in 4.1 add --generateTrace and the output path. The result you can inspect in the browser. Also there's -- extendedDiagnistics if I remember cor

I think you can in 4.1 add --generateTrace and the output path. The result you can inspect in the browser. Also there's -- extendedDiagnistics if I remember correctly that tells you which part of the compilation process takes what time