COMSOL on a dell T630 server, too slow

hi,everybody.
I have just buy a new dell T630 server with 16 intel cores and 64GB RAM. COMSOL is running extremely slow on it and even slower than a old PC with only 4 cores and 4GB RAM. There must be something wrong with the configuration setting of COMSOL or DELL server.
Can anyone help me with the setting. Thanks very much!