Slow processing speed

Lately when I mark a word as known/yellow it takes between 2-10 seconds to get processed by the system. Any suggestions?


@jonlingq - we are sorry about that. Do you experience the slowness with some particular processes (LingQing, opening courses, etc.) or with the site in general? We are working on improving our server performance now (consequences of the last attacks). We hope to improve it over the next week or so. Sorry for the inconvenience. Thanks for your understanding!