I just loaded a few Google services I use. AdSense takes 6 seconds to load. DoubleClick takes 10-15 seconds to load. Running a speed test on fast.com I'm getting 200Mbps.

Without question Google makes the slowest and least responsive sites I use. It's like the 600lbs man giving tips for staying in shape and living a healthy lifestyle. When they have a nearly unlimited budget and access to some of the best engineers and infrastructure on the planet, and they can't practice what they preach, it's difficult for me to listen.