filetype.detect spend a lot of time when file is a big binary

[fcying]

nvim-telescope/telescope.nvim#1637

when I use Telescope find_files select a big binary file, filetype.detect spend a lot of time and freezes nvim.

Conni2461 :
For me it spends 20 seconds in filetype detect (so a plenary issue). Because it reads the head (first line) of the file and looks for a shebang.

Better idea. Lets not read until \n. Lets just read the first n bytes (128 or 256) and then check for a shebang

test file
ccls_test_telescop.zip

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update[01/21]
block in filetype.detect_from_modeline (filetype.lua +172)
if i disable this check, work fine.