What is the likely cause of performance issues with new software on trusted operating systems?

The most plausible cause of performance issues with new software on trusted operating systems could be related to security mechanisms such as SE Linux (Security-Enhanced Linux) that are designed to enforce stricter access controls. These settings can prevent software from executing or functioning properly if the necessary permissions are not granted. When software is developed, it may not be aware of or configured to adhere to the specific security policies enforced by SE Linux, leading to performance degradation or failure to run as expected.

In contrast, while high memory usage can affect performance, it may not be the primary issue especially if the system's hardware specifications are adequate. Insufficient hardware resources could also cause issues, but this would be less specific to trusted operating systems or new software. Misconfiguration of network settings can certainly create issues, particularly for network-dependent applications, but it wouldn’t directly impact the performance of local software execution on the operating system. Therefore, the impact of SE Linux settings is a specific and probable explanation for performance issues when new software is introduced in a trusted operating environment.