Unfortunately yes. I ran a workshop with a group of students learning about digital electronics. They all installed the IDE and it was pretty much unusable except for on the faster laptops. The RP2040 was particularly bad, but the Mega*8 was a bit better. The problem seemed to be continual project indexing and no caching. It was also very difficult to see progress so often you'd hit upload and wait for tens of seconds before figuring out if anything had compiled or uploaded.

This is absolutely an Arduino problem. avr-gcc for a small program often compiles faster than the time it takes to upload with avrdude. And the IDE uses both underneath. Or compared to Atmel Studio, which is surprisingly not bad.