While working in uVision on a C++ file and toolchain set to ARM Compiler 6 (6.10.1) in MDK 5.26, often when I start to type in any code, the browse information starts recreating slowing down the editor enough to be unusable.
Time to write a single #ifdef line can take up to 30 seconds of waiting for the editor to show what's being typed.
There are time when I think the lads a Keil had the tea lady or caretaker/janitor write some of the browse and auto-complete functionality.