Freeze when huge data in terminal

[smallp]

Issue Type: Performance Issue

for x in range(80000):
    print('a',end='')

Run it in terminal, and then you'll find CPU usage is 100 and vscode freeze.

VS Code version: Code 1.48.2 (a047975, 2020-08-25T10:09:08.021Z)
OS version: Darwin x64 18.6.0

System Info

|Item|Value| |---|---| |CPUs|Intel(R) Core(TM) i5-8279U CPU @ 2.40GHz (8 x 2400)| |GPU Status|2d_canvas: enabled
flash_3d: enabled
flash_stage3d: enabled
flash_stage3d_baseline: enabled
gpu_compositing: enabled
metal: disabled_off
multiple_raster_threads: enabled_on
oop_rasterization: disabled_off
protected_video_decode: unavailable_off
rasterization: enabled
skia_renderer: disabled_off_ok
video_decode: enabled
viz_display_compositor: enabled_on
viz_hit_test_surface_layer: disabled_off_ok
webgl: enabled
webgl2: enabled|

[Tyriar]

/duplicate #74620