SC 7.1 On Ubuntu 12.4 Running Poorly

Hello. We have been using Scriptcase since V6 on Ubuntu 12.4. Upgraded to SC V7.1 and all was fine. Now over time, SC is running slower and slower. Create an app, and web interface just hangs. Have to close browser and go back in and the app is there. Some times web interface is not up at all. /etc/init.d/scriptcase status show running. Memory and CPU free resources are good. Hardware is in good shape. We have to restart scriptcase service often.
Any ideas?

I wish to try increase memory limit in Apache but which ini file? Below is output of locate php.ini.

SC 7.1 is running in /opt/nm/v6/www/scriptcase7