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https://issues.apache.org/jira/browse/GUACAMOLE-439?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16285509#comment-16285509
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Michael Jumper commented on GUACAMOLE-439:
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This is not a bug within Guacamole, but rather an unfortunate fact of IE's slow
implementation. If IE is incapable of processing the data received by Guacamole
without blocking handling of mouse events / interactivity within the browser
window, I don't think there's anything we can do to help it along. Guacamole's
processing is already extremely streamlined, with much of the decoding process
offloaded to browser-native image decoding which runs in the background.
I'm not sure whether IE11's dev tools has a working/useful profiler. If it
does, and you can run Guacamole within the profiler, that may reveal what is
slow in IE but not in other browsers. Beyond that, I doubt there is an actual
Guacamole-side performance problem to be resolved here.
> Mouse movement in IE 11 is very irritable. It's not smooth as it is with
> other browsers.
> ----------------------------------------------------------------------------------------
>
> Key: GUACAMOLE-439
> URL: https://issues.apache.org/jira/browse/GUACAMOLE-439
> Project: Guacamole
> Issue Type: Improvement
> Components: guacamole-common-js
> Affects Versions: 0.9.13-incubating
> Environment: Internet Explorer 11
> Reporter: Amarjeet Singh
>
> Mouse movement in IE is very irritating. It stops, hangs and there is
> lagging as well. It affects the whole user experience while scrolling as
> well. If there is a file of more than 5000 line and I want to scroll, it
> hangs in between and starts again. Mouse movement breaks in between.
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