Blurry screen only within this app.

[ZeddBread]

Issue Type: Performance Issue

Some of the screen blurs within the app and I also have 'Fix scaling for apps' turned on in Windows settings. It blurs most of the screen sometimes when I interact with Code, then it goes clear again.

VS Code version: Code 1.26.0 (4e93618, 2018-08-13T16:29:31.933Z)
OS version: Windows_NT x64 10.0.17134

System Info

Item	Value
CPUs	AMD FX(tm)-8350 Eight-Core Processor (8 x 4019)
GPU Status	2d_canvas: enabled checker_imaging: disabled_off flash_3d: enabled flash_stage3d: enabled flash_stage3d_baseline: enabled gpu_compositing: enabled multiple_raster_threads: enabled_on native_gpu_memory_buffers: disabled_software rasterization: enabled video_decode: enabled video_encode: enabled webgl: enabled webgl2: enabled
Memory (System)	15.96GB (10.45GB free)
Process Argv	C:\Program Files\Microsoft VS Code\Code.exe UVCopy.mel
Screen Reader	no
VM	0%

Process Info

CPU %	Mem MB	   PID	Process
    1	    82	 10584	code main
    0	    78	  8536	   shared-process
    0	    80	 11432	   gpu-process
    0	   156	 11656	   window (UVCopy.mel - Visual Studio Code)
    0	    35	 10708	     searchService
    0	    51	 11652	     extensionHost
    0	    13	 12728	     electron-crash-reporter
    1	    73	 12976	   window (Issue Reporter)

Workspace Info

;

Extensions (4)

Extension	Author (truncated)	Version
code-runner	for	0.9.4
python	ms-	2018.7.1
cpptools	ms-	0.18.1
csharp	ms-	1.15.2

[dbaeumer]

Dups #51789