Hi @SophiaL37. Where in the creation process are you seeing a slow loading of images? Is this in the Insert Image popup window or in the Images sidebar?
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Without being able to actually work in the Twitter account or troubleshoot live with you, I'm afraid I'm not able to provide much more guidance or troubleshooting on this. I'd advise calling our general support so they can continue troubleshooting it with you live, or screenshare if necessary.
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