This. Crippling a high Mac is still not going to effectively mimic a low end system. An end user device is a system of queues if you will think like that. The

This. Crippling a high Mac is still not going to effectively mimic a low end system. An end user device is a system of queues if you will think like that. The slowest/smallest/busiest link in the system determines the overall experience. Sounds like for your needs, you’re going to need a real low-end system that has real bottlenecks in CPU(speeds, caches, accelerators), mem(capacity and speeds), IO(capacity and speeds).