Adobe Flash Player 11 runs slowly in FF 14

Currently using FF 14 (release channel) with Flash Player 11 (updated today, 7/21/12). Flash objects, such as Facebook games, run slow/choppy to the point where it looks like a collection of tiles updating over the course of a few seconds.
I have deleted temp files, compacted databases, uninstalled and reinstalled FF, updated display drivers, ran the flash objects in full-screen mode, and tested the same flash objects in other browsers.
Running in full-screen mode alleviates the slowness, but there is a delay when loading content that is normally not noticed when viewing on a normal page; however, the action plays as it should. Viewing the flash content from other browsers, such as IE, allows the content to play fluidly as it should. Flash hardware acceleration (Settings) toggle does not seem to alter performance, and the Global Settings are allowing websites to store sufficient data. Rebooting also does not resolve the issue.
The PC in question is running Win 7 32bit; 2 GB RAM; Dual Core 1.8 GHz processor; ATI Radeon HD 2400 graphics @ 1280x1024 resolution.
Task Manager shows that the Flash Player uses up to 60% of the CPU time, Firefox uses less than 15% at peak, and the plugin container typically runs below 10% when viewing the flash object on a page normally. Full-screen viewing of the flash object can have Flash Player take up to 70% of the CPU time, but playback is fluid.

Hi RichardVV, what I recommend is the following:
* Disable hardware graphics acceleration in Firefox. You usually need to restart Firefox in order for this to take effect, so save all work first (e.g., mail you are composing, online documents you're editing, etc.).
orange Firefox button ''or'' classic Tools menu > Options > Advanced
On the "General" mini-tab, uncheck the box for "Use hardware acceleration when available"
* Install Flash 11.4 (the current version)
* If there are problems with Flash, disable the Flash player's use of hardware graphics acceleration. See the steps in this article: http://helpx.adobe.com/flash-player/kb/video-playback-issues.html#main_Solve_video_playback_issues
* If there are still problems with Flash, disable the Flash player's protected mode. See this support article from Adobe under the heading "Last Resort": [http://forums.adobe.com/message/4468493#TemporaryWorkaround Adobe Forums: How do I troubleshoot Flash Player's protected mode for Firefox?]

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Start Firefox in <u>[[Safe Mode|Safe Mode]]</u> to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).
*Do NOT click the Reset button on the Safe Mode start window or otherwise make changes.
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A script in this movie is causing Adobe Flash Player to run slowly

Hi,
I am having a recursive function which some time runs morethan 20 seconds. But within 15 sec i got a "A script in this movie is causing Adobe Flash Player to run slowly" . Is it possible for me to increase default time.
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click file/publish settings/flash and adjust the script timeout.

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I have uploaded the exported model, which you can download following this link:
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<a href="https://sapmats-de.sap-ag.de/download/download.cgi?id=X5LDIBPJBA1KHA87IGX1UODP7P934R17SYAIQU2MVSKI6Q85TB">VC Model</a>

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