Poor performance in scaled screen modes

Rhino performance degrades significantly, when external monitor uses scaled display modes

Rhino 8 SR0 2023-9-28 (Rhino 8 BETA, 8.0.23271.13234, Git hash:master @ 4acd4a788d5f9e7999c3d49c07cdd2f60038b920)
License type: Educational, build 2023-09-28
License details: Cloud Zoo
Expires on: 2023-11-12

Apple macOS Version 14.0 (Build 23A344) (Physical RAM: 16Gb)
Mac Model Identifier: MacBookPro17,1
Language: en
.NET 7.0.0

Metal GPU Family Apple 7
Metal GPU Family Common 3
Metal GPU Family Mac 2
Graphics processors
  Apple M1
    Color LCD (1440 x 900 @ 60.00Hz)
    U32H85x (3008 x 1692 @ 60.00Hz)

USB devices
  Generic: USB Storage
  Realtek: USB 10/100/1000 LAN
  Generic: USB Audio
  VIA Labs, Inc.         : USB Billboard Device   

Bluetooth devices
  None

Third party kernel extensions
  None

Third party plugins
  /usr/lib/swift/libswiftCore.dylib
  /usr/lib/swift/libswiftCoreFoundation.dylib
  /usr/lib/swift/libswiftCoreGraphics.dylib
  /usr/lib/swift/libswiftCoreImage.dylib
  /usr/lib/swift/libswiftDarwin.dylib
  /usr/lib/swift/libswiftDispatch.dylib
  /usr/lib/swift/libswiftIOKit.dylib
  /usr/lib/swift/libswiftMetal.dylib
  /usr/lib/swift/libswiftOSLog.dylib
  /usr/lib/swift/libswiftObjectiveC.dylib
  /usr/lib/swift/libswiftQuartzCore.dylib
  /usr/lib/swift/libswiftUniformTypeIdentifiers.dylib
  /usr/lib/swift/libswiftXPC.dylib
  /usr/lib/swift/libswift_Concurrency.dylib
  /usr/lib/swift/libswiftos.dylib
  /usr/lib/swift/libswiftsimd.dylib
  /usr/lib/swift/libswift_StringProcessing.dylib
  /usr/lib/swift/libswift_RegexParser.dylib
  /usr/lib/swift/libswiftCryptoTokenKit.dylib
  /usr/lib/usd/libusd_ms.dylib
  /usr/lib/swift/libswiftCoreAudio.dylib
  /usr/lib/swift/libswiftCoreLocation.dylib
  /usr/lib/swift/libswiftCoreMedia.dylib
  /usr/lib/swift/libswiftCompression.dylib
  /usr/lib/swift/libswiftCoreMIDI.dylib
  /usr/lib/swift/libswiftAVFoundation.dylib
  /usr/lib/swift/libswiftFileProvider.dylib
  /usr/lib/swift/libswiftIntents.dylib
  /usr/lib/swift/libswiftGLKit.dylib
  /usr/lib/swift/libswiftGameplayKit.dylib
  /usr/lib/swift/libswiftMetalKit.dylib
  /usr/lib/swift/libswiftModelIO.dylib
  /usr/lib/swift/libswiftSceneKit.dylib
  /usr/lib/swift/libswiftSpriteKit.dylib
  /usr/lib/swift/libswiftAccelerate.dylib
  /usr/lib/swift/libswiftCoreML.dylib
  /usr/lib/swift/libswiftVision.dylib
  /usr/lib/swift/libswiftRegexBuilder.dylib
  /usr/lib/swift/libswiftDemangle.dylib
  /usr/lib/swift/libswiftVideoToolbox.dylib
  /usr/lib/swift/libswiftObservation.dylib
  /usr/lib/swift/libswiftWebKit.dylib
  /usr/lib/swift/libswiftNaturalLanguage.dylib
  /usr/lib/swift/libswiftSystem.dylib
  /usr/lib/swift/libswiftMapKit.dylib
  /usr/lib/log/liblog_network.dylib


Rhino plugins that do not ship with Rhino

Rhino plugins that ship with Rhino
  /Applications/RhinoBETA.app/Contents/Frameworks/RhMaterialEditor.framework	"Renderer Development Kit"	8.0.23271.1002
  /Applications/RhinoBETA.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/Commands.rhp	"Commands"	8.0.23271.13234
  /Applications/RhinoBETA.app/Contents/PlugIns/NamedSnapshots.rhp	"Snapshots"	8.0.23271.1002
  /Applications/RhinoBETA.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RhinoCodePlugin.rhp	"RhinoCodePlugin"	8.0.23271.13234
  /Applications/RhinoBETA.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RDK_EtoUI.rhp	"RDK_EtoUI"	8.0.23271.13234
  /Applications/RhinoBETA.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/MeshCommands.rhp	"MeshCommands"	8.0.23271.13234
  /Applications/RhinoBETA.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RhinoRenderCycles.rhp	"Rhino Render"	8.0.23271.13234
  /Applications/RhinoBETA.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RhinoCycles.rhp	"RhinoCycles"	8.0.23271.13234
  /Applications/RhinoBETA.app/Contents/PlugIns/AnimationTools.rhp	"AnimationTools"	8.0.23271.1002
  /Applications/RhinoBETA.app/Contents/PlugIns/SectionTools.rhp	"SectionTools"	8.0.23271.1002
  /Applications/RhinoBETA.app/Contents/PlugIns/RhinoRender.rhp	"Legacy Rhino Render"	8.0.23271.1002
  /Applications/RhinoBETA.app/Contents/PlugIns/Displacement.rhp	"Displacement"	8.0.23271.1002
  /Applications/RhinoBETA.app/Contents/PlugIns/PanelingTools.rhp	"PanelingTools"	8.0.23271.1002
  /Applications/RhinoBETA.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RhinoDLR_Python.rhp	"IronPython"	8.0.23271.13234
  /Applications/RhinoBETA.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/GrasshopperPlugin.rhp	"Grasshopper"	8.0.23271.13234

hi @mlkplk thanks for reporting. I see similar behavior in V7
RH-77649 Mac display speed: Slower at certain display scaling

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