@JulianM and @Kuttermax are right, bumping intensity down a little can also help. However, too many ppl who struggle with this bump it down to 110% or even 105% FTP in order to complete the workout. At that point you are no longer achieving time at VO2max. @chad mentioned this today in the podcast. Go down to 115%, maybe.
@JulianM I snuck in a little edit to my response 
They are tough workouts, but they’re there for a reason. And they are achievable.