sfdx force:source:deploy taking upwards of 5mins to deploy LWC

[nebc-jasonfung]

Summary

When deploying LWC to a non-scratch org using sfdx force:source:deploy it taking upwards of 5mins to deploy a few lines of code.

For non LWC, it deploys in a few seconds

Steps To Reproduce:

1. Create a new LWC and make simple changes to it
2. Use sfdx force:source:deploy to deploy your changes to the authorised org

Expected result

It should take a few seconds for the changes deploy to your org, just like it does for Apex classes etc.

Actual result

Taking upwards of 5mins to deploy

Additional information

SFDX CLI Version: sfdx-cli/7.53.0-839fc82926 win32-x64 node-v10.15.3

SFDX plugin Version:

@oclif/plugin-autocomplete 0.1.5 (core)
@oclif/plugin-commands 1.2.3 (core) 
@oclif/plugin-help 2.2.3 (core)     
@oclif/plugin-not-found 1.2.3 (core)
@oclif/plugin-plugins 1.7.9 (core)
@oclif/plugin-update 1.3.9 (core)
@oclif/plugin-warn-if-update-available 1.7.0 (core)
@oclif/plugin-which 1.0.3 (core)
@salesforce/sfdx-trust 3.0.7 (core)
analytics 1.7.1 (core)
generator 1.1.2 (core)
salesforcedx 48.8.0
├─ salesforcedx-templates 48.8.0
├─ @salesforce/sfdx-plugin-lwc-test 0.1.5
└─ salesforce-alm 48.8.0

sfdx-cli 7.53.0 (core)

OS and version: Windows 10 Pro 10.0.18363 Build 18363

[ennoucas]

Same here. It happened as soon as I created separate js files for my LWC to be loaded as modules.

[shetzel]

Yeah this is interesting bug. It wasn't 5 mins for me but it's unacceptably too long. We'll track it down and get it into a patch release asap. Thank you for reporting.

[uip-robot-zz]

This issue has been linked to a new work item: W-9300113