Shutter very slow and laggy?

 There are several reasons why the Shutter application may be slow and laggy. Here are a few potential issues and their solutions:

1. Insufficient memory: If your computer does not have enough memory, the Shutter application may run slowly. Close any unnecessary programs or windows to free up memory, or try increasing the amount of RAM on your computer.

2. High CPU usage: If another program is using a large amount of your computer's CPU, it can cause the Shutter application to be slow and laggy. Close any unnecessary programs or windows to free up CPU resources, or try restarting your computer.

3. Old version of Shutter: Make sure you have the latest version of Shutter installed. An outdated version may not be compatible with your computer's hardware or software and could cause lag.

4. Large image size: If you are trying to capture large images, it may take more time to process, causing the Shutter application to be slow. Try reducing the size of the image or area you are capturing.

5. Corrupted files: Sometimes the application's files can become corrupted. Try reinstalling the Shutter application.

6. Background processes: Some background processes such as anti-virus or firewall software can cause the application to run slow. Temporarily disabling these processes may help.

7. Graphic drivers: Make sure that you have the latest graphic drivers installed, if your graphic drivers are outdated, it can cause lag and slow down your application.