IMVU account holders often face lag issues within the IMVU chat messenger as the messenger's high resolution and 3-D graphics environment can tax a computer's resources. The amount of strain depends on a number of factors including the level of those resources, chat room graphics and your avatar file size. As a result, making the IMVU messenger run faster requires that you check these areas and make changes to the way you use both your computer and the IMVU messenger.
Close all other open programs on your computer while using the IMVU messenger to prevent drain on your system's resources. If you decide to keep an Internet browser open, access the browser's options, lower the security level and turn off any pop-up blocker settings.
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Wait for IMVU to load a new room, and avatars in the room, before rotating or zooming within it, clicking posing spots or chatting. In addition, stop interacting with the room for a second or two whenever you see the "Loading" box drop from the top of the room screen. IMVU lags whenever new products load.
Dress your avatar with products that have low kilobytes to keep the size of your avatar file low -- especially if you're visiting a room with a lot of graphics. If the messenger lags repeatedly, don't use action animations that might require the use of a lot of resources or that can affect the IMVU messenger's ability to load products.
Run your computer's antivirus software. Viruses and other malware can drain resources and corrupt your system. The messenger may lag as a symptom of this type of issue.
Clean up your computer to free system resources. Click the "Start" icon, select "All Programs," then "Accessories," then "System Tools." Run the disk cleanup tool. When it's finished, run the disk defragmenter.
Check for bad sectors on your computer's hard drive. Click "Start," select "My Computer," right-click the hard drive in the "My Computer" window, click "Tools" in the Properties dialog box and then click the "Check Now" button. Click the box next to "Scan for and attempt recovery of bad sectors" and then click the "Start" button. Follow the on-screen instructions to any fix bad sectors.
Boost your speed with the ReadyBoost feature if you have Windows 7. Plug an external flash drive or memory card into your computer. Click "Speed Up My System" in the "General" section on the "Autoplay" window and then click the "ReadyBoost" tab in the "Properties" dialog box that appears. Select "Dedicate this device to ReadyBoost" to dedicate all free space on the external storage to boosting your computer speed or select "Use this device" and then select an amount of space you want to dedicate. When you're finished, click the "OK" button to turn on ReadyBoost.
Install additional random access memory, or RAM, and a graphics card with higher performance capability or more graphics memory. Both are dependent on your motherboard capacity, so check before you invest in parts.