If you're experiencing a sudden drop in LpM with GSA SER, it's important to troubleshoot the root cause before making any changes. Check if there are any issues with your proxy or if you need to adjust your settings.
Using a VPN service like proXPN may help with proxy issues, but keep in mind that it can also slow down your connection and affect LpM. It's best to test different options and find the optimal setup that works for your needs. Additionally, make sure to regularly update and maintain your GSA SER software and proxy list for optimal performance.