Silver's optimized and modified kernel does now run on the server. With that said, you shouldn't experience any sporadic lags anymore. If you discover any issues with that, please communicate it to us via our support system or any other communication channel. 

The kernel in an operation system is responsible for the communication between the hardware and the software. There's a way to modify the kernel under Linux, which is a very important key in a stable system. Linux is the system we use on our dedicated server.

The reason for the late delivery of the kernel is, that it has to match the criteria which a modern operating system has to face nowadays.