Stereo Tool Preset Full [exclusive] Guide
"Full" versions of presets are often more CPU-intensive than "Lite" versions, as they use higher-quality filters and more complex processing stages. How to Apply a Full Preset
“Add an option to save/load a ‘Complete Preset’ that includes every single setting from every active and inactive module, including GUI layout, input/output levels, and routing.” stereo tool preset full
To combat harshness, reduce High-Frequency limiting thresholds and check the De-esser settings. "Full" versions of presets are often more CPU-intensive