Forum Discussion
Internet Explorer 11 performance with SPFx
Yeah, the same experience with us. SPFx extension works great on Chrome, slows down the process in IE11. We are recommending users to use Chrome.
Well .. I am glad that I am not alone :)
for big companies, recommending Chrome is not an option as there are many legacy applications that works only in IE. I have noticed as well that the performance is even worst in IE 11 on windows 7 than IE 11 in windows 10 and unfortunately windows 7/IE 11 is the standard operating environment.
We are also seeing this issue and I set the blame on our Network group and must now humble myself. After networking at a SharePoint conference I found that many organizations are seeing inconsistent slowness with the IE browser. My organization had put in a ticket for this issue to Microsoft but all they wanted was fiddler traces which is hard to plan because this is so inconsistent. It seems this is another one of the "known issues" that Microsoft is not "transparent" about.
I have created an issue for this and hopefully , it get resolved soon
https://github.com/SharePoint/sp-dev-docs/issues/1438
