FcgidMaxProcessesPerClass too high
Please consider lowering default value for FcgidMaxProcessesPerClass. Default value of 100 is very high, 100 php-cgi processes can easily consume large amounts of memory(100 process * 50Mb per process = 5000MBb). So potentially default website is vulnerable to simple DDoS attack. Personally I use value of 3-5 for this which is a good compromise of performance, stability and resource usage.