Just out of curiosity I tried your Amplitube 5 tests with my i5, 9th gen PC.  Here are some numbers that may help establish a benchmark with newer hardware. I do see an increased (doubled) load with the latest version. Amplitube 5 - (tested with VST3) v5.0.3 Audio processing 0.8%; Engine load 5-8% v5.1.1 Audio processing 1.8; Engine load 10-15%  
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