As a general rule, if you experience performance problems with your shapenet site, we suggest the following series of troubleshooting steps:
1. Check your internet
2. Test access using a different browser
3. Clear your preferred browser's cache
4. Verify that the local computer doesn't have any performance bottlenecks or malware (viruses) that could be blocking normal Internet access.
If you are still experiencing issues after following the above steps please send us a support ticket!