Pod CPU usage drops from 1 to 0 while RAM usage remains high (~30gb), while maintaining Running status, after ~130 minutes. How can I prevent the CPU drop?

Cluster information:

Kubernetes version: 1.22.11
Cloud being used: Azure (AKS) AKSUbuntu-1804gen2containerd-2022.10.03
Installation method: Helm chart picked up by Flux
Host OS: Linux

Single CPU core being utilized, and after about ~130 minutes CPU drops to 0 (therefore no work being done) while the pod remains in Running status. RAM usage continues to be high.

Any ideas as to what can be causing this?

change helm chart resource like this

memory: 600Mi
cpu: 200m
memory: 200Mi