i downloaded the xcode Version 8.0 (8A218a) yesterday and my xcode editor became extremely slow. i can type in a complete line before i see anything on the screen and then the screen displays one character at a time at less than one character per second. the file i am editing i about 1.1 MB. this all worked perfectly before the update. i have tried a new file and copying my old file into it, but that didn't work. the current line highlighting is new as well.
thanks,
tom lindner
FILE:
kind: C Source
size: 1,090,739 bytes (1.1 MB on disk)
MAC:
MacBook Pro (Retina, 15-inch, Early 2013)
2.8 GHz Intel Core i7
16 GB 1600 MHz DDR3
Intel HD Graphics 4000 1536 MB
OS:
OS X El Capitan
Version 10.11.6 (15G1004)