Besides terrible performance in the VAB, the biggest frustration I have is that any kind of action that involves clicking on a part simply isn't responsive whatsoever. I have to click it 45 times, or select another part off the part list and drop it. Selecting for pickup, rotation, or offset all has this problem (but rooting doesn't). It's INFURIATING.
To say I have a lot of mods is an understatement:
"name": "Achievements"
"name": "AirplanePlus"
"name": "AlternateResourcePanel"
"name": "AnimatedDecouplers"
"name": "AviationLights"
"name": "B9"
"name": "B9AerospaceHX"
"name": "B9AnimationModules"
"name": "B9PartSwitch"
"name": "B9-props"
"name": "B9-PWings-Fork"
"name": "BasicProceduralTextures"
"name": "BDArmoryContinued"
"name": "ChampagneBottleRedux"
"name": "Chatterer"
"name": "ChattererExtended"
"name": "CivilianPopulation"
"name": "CommunityCategoryKit"
"name": "CommunityPartsTitles"
"name": "CommunityResourcePack"
"name": "CommunityTechTree"
"name": "CommunityTraitIcons"
"name": "ConnectedLivingSpace"
"name": "CraftManager"
"name": "CrewQueueTwo"
"name": "CustomAsteroids"
"name": "CustomAsteroids-Pops-Stock-Inner"
"name": "DangItContinued"
"name": "DeadlyReentry"
"name": "DecouplerShroud"
"name": "DestructionEffects"
"name": "DistantObject"
"name": "DistantObject-default"
"name": "DMagicOrbitalScience"
"name": "DMagicScienceAnimate"
"name": "ExperimentTracker"
"name": "ExtrasolarPlanetsBeyondKerbol-stock"
"name": "OinkersSkybox"
"name": "FelineUtilityRovers"
"name": "Firespitter"
"name": "FirespitterCore"
"name": "HaystackReContinued"
"name": "HazardTanksTextures"
"name": "HyperEdit"
"name": "Impact"
"name": "IndicatorLights"
"name": "IndicatorLightsCommunityExtensions"
"name": "InterstellarFuelSwitch"
"name": "InterstellarFuelSwitch-Core"
"name": "JoolBiomes"
"name": "KAS"
"name": "KerbalAlarmClock"
"name": "KerbalEngineerRedux"
"name": "KerbalGPSRevived"
"name": "KerbalHealth"
"name": "KerbalPlanetaryBaseSystems"
"name": "KerbalRenamer"
"name": "EnvironmentalVisualEnhancements"
"name": "KIS"
"name": "KSPLogiRGB-battlemoose"
"name": "KWRocketryRebalanced"
"name": "MainSailorTextures-Complete"
"name": "MainSailorTextures-Essentials"
"name": "ManeuverNodeEvolved"
"name": "MechJeb2"
"name": "MissionController2"
"name": "Mk1PrototypeCockpit"
"name": "USI-FTT"
"name": "ModuleManager"
"name": "MunarIndustriesFTX"
"name": "NavballDockAlignIndCE"
"name": "NearFutureConstruction"
"name": "NearFutureLaunchVehicles"
"name": "NearFutureProps"
"name": "NearFuturePropulsion"
"name": "NearFutureSolar"
"name": "NearFutureSolar-Core"
"name": "NearFutureSpacecraft"
"name": "NehemiahEngineeringOrbitalScience"
"name": "PlanetShine"
"name": "PreciseNode"
"name": "ProceduralParts"
"name": "ProceduralParts-Textures-SaturnNova"
"name": "RasterPropMonitor"
"name": "RasterPropMonitor-Core"
"name": "RCSBuildAidCont"
"name": "RealHeat"
"name": "ReCoupler"
"name": "ReentryParticleEffect"
"name": "RemoteTech"
"name": "SCANsat"
"name": "ScienceAlert"
"name": "ScienceRelay"
"name": "SimpleAdjustableFairings"
"name": "SimpleAdjustableFairings-KWRocketry"
"name": "SpaceXLegs"
"name": "StageRecovery"
"name": "StationKeeping"
"name": "StationPartsExpansionRedux"
"name": "StationScienceContinued"
"name": "TakeCommandContinued"
"name": "Targetron"
"name": "TweakableEverythingCont"
"name": "TweakScale"
"name": "UniversalStorage2"
"name": "VABReorienter"
"name": "VensStylePPTextures"
"name": "xScience"
"name": "TriggerAu-Flags"
"name": "SpeedUnitAnnex"
"name": "CustomAsteroids-Pops-Stock-Stockalike"
"name": "CustomAsteroids-Pops-Stock-Outer"
"name": "ContractsWindowPlus"
"name": "KSPInterstellarExtended"
"name": "USI-NuclearRockets"
"name": "PatchManager"
"name": "Corvus125mTwoKerbalPod"
"name": "Toolbar"
"name": "KerbalAtomics"
"name": "HeatControl"
"name": "MissingHistory"
"name": "UniversalStorage"
"name": "EasyVesselSwitch"
"name": "USI-LS"
"name": "UKS"
"name": "FirespitterResourcesConfig"
"name": "SmokeScreen"
"name": "PhysicsRangeExtender"
"name": "ToolbarController"
"name": "ClickThroughBlocker"
"name": "Kopernicus"
"name": "ModularFlightIntegrator"
"name": "TextureReplacer"
"name": "PlanetShine-Config-Default"
"name": "ToadicusToolsContinued"
"name": "ProgressParser"
"name": "ContractParser"
"name": "USITools"
"name": "USI-Core"
"name": "CryoTanks"
"name": "DynamicBatteryStorage"
"name": "DeployableEngines"
"name": "Konstruction"
"name": "GroundConstruction-Core"
"name": "AT-Utils"
"name": "ConfigurableContainers-Core"
"name": "USI-EXP"
"name": "EnvironmentalVisualEnhancements-HR"
"name": "EditorExtensionsRedux"