Service? No .. it's the dynamics of using the network. It can vary from day to day or week to week. Same issue if using LW Basic.

Many people have not been happy with the new LW 5, & personally I do believe they released it far too soon. They left out many tools, it was still containing many bugs. You do have the option to downgrade back to LW 4.18 if you wish. If you still have your old installer use that, else get it from the Classic link on left side of your pro download page.

Otherwise, use the advanced search options. These give a few more options for searching. Sharing also helps believe it or not. Having people uploading from you helps to spread your searches.