http://w3c.github.io/preload/

Improving memory management would prevent IE from blowing through all available graphic memory. Often, when using a high number of tabs (common in development), IE will overload the available graphics memory (never RAM), and elements will start disappearing from web pages or failing to load altogether.

This needs to be tweaked so that it stops happening - it doesn't seem to be an issue for any other browser.

In line with webgl support, be ahead if the curve in supporting the emerging web assembly standard.

Be ahead of the curve or at least on par with Mozilla, to be first or joint first in supporting this exciting new capability (even in beta or early release testing)

Don't make us wait!!

Variable Open Type fonts are an important innovation in font distribution and loading performance, in that a single font can be configured to render and replace many different weights (among other configuration axes).

Related Articles:
https://webkit.org/blog/7051/variable-fonts-on-the-web/
https://alistapart.com/blog/post/variable-fonts-for-responsive-design
https://blog.typekit.com/2016/09/14/variable-fonts-a-new-kind-of-font-for-flexible-design/
http://typographica.org/on-typography/variable-fonts/
https://medium.com/@tiro/https-medium-com-tiro-introducing-opentype-variable-fonts-12ba6cd2369

Live Demo: http://www.axis-praxis.org/

Follow status on Twitter: https://twitter.com/variablefonts
Proposed for Can I Use: https://github.com/Fyrd/caniuse/issues/2812

Networking performance enhancement:

http://research.google.com/pubs/pub37517.html
http://www.ietf.org/proceedings/80/slides/tcpm-3.pdf

Defines a means for site developers to programmatically give the User Agent hints on the download priority of a resource.

http://www.w3.org/TR/resource-priorities/

It would be nice if, as with other well known browsers, when I start Edge with my previous tabs not loaded until I click on one of them. It would result on a faster startup loading, especially if like me, I end up having 20/30 tabs opened at each session.

https://tabatkins.github.io/specs/css-font-display/#descdef-font-face-font-display

font-display gives easy, and precise control over Flash Of Unstyled Text.

It's makes it possible to tell the browser how long it should wait for a font before rendering a fallback.

Some sites use JavaScript/localStorage hacks to use fallback font on the first uncached load, and then use custom fonts on later visits. This is also possible with font-display without JS/hacks.

If you zoom in on a webpage using pinch zooming from the touchpad, there is a noticeable frame-by-frame lag, unlike the Mail app, in which pinch zooming is VERY smooth.

Note: I'm talking about the touchpad, not touchscreen.

Chrome and Firefox support the standards based websockets compression extension permessage-deflate during protocol upgrade negotiation (see https://tools.ietf.org/html/draft-ietf-hybi-permessage-compression-17).

Applications that use websockets with a reasonable payload across a LAN (eg. most JSON payloads) and especially across the internet are noticeable slower in Edge.

As more modern web apps (SPAs especially) implement websockets, Edge is at a disadvantage compared to competitive Windows browsers.

Please consider for a future update of Edge.

Resource prefetching for early downloading of resources intended to be used on the current page.

This would allow URLs to resources the page will require to be specified in response headers so they can be requested as soon as possible.

http://www.chromium.org/spdy/link-headers-and-server-hint/link-rel-subresource

IE 11 Hangs and/or crashes when large amount of data is loaded within a update panel. https://support.microsoft.com/kb/2000262

Compare the test run count for Math.sqrt of IE11 vs Chrome at http://jsperf.com/math-sqrt-vs-newton-raphson-method.
However, IE11 beats both Chrome and FF in Newton Raphson method test (root).

Make it so Edge opens on the screen that you close it on if using more than one monitor. so you can decide which monitor you want to use it on, and not just the main one.

My browsing generally consists of center mouse button clicking of topics that interest me, after reading a page I will close it and go onto another page.

I suggest any back ground page that had objects that are trying to output audio or video be placed into suspend mode.

I.E. I know I have too many tabs open when my laptop starts muttering at me or the CPU fan kicks in.

history deletion options:
on visiting next website, previous histories to be deleted automatically.
or history pages to be deleted with time frame options
5 min, 10 min, 15 min..of usage of net..