For Execute Mode (multi-step autonomous tasks), Skales queues steps sequentially so there's no parallel bottleneck – it plans, you approve, then it runs through each step. There's also a desktop buddy (think as Microsofts Clippy, but actually useful) that sits in your system tray (if activated) as soon you minimize or close the main-windows, you can ask it quick questions without even opening the main interface. It runs within the same Electron process, so zero additional RAM overhead. Idle RAM sits around ~300MB (I had 400MB at least) which keeps things snappy.
The main speed factor is honestly the LLM provider, not Skales itself. With local Ollama models it's purely your hardware.
Happy to answer more specific questions, thank you for asking jlongo78!