Gym first thing then break your fast at your normal time, whenever that is - wonderfully simple!
If you’re used to fasting it shouldn’t really affect your performance, just make sure you’re hitting your macros when you do eat. I basically only ever workout fasted (mostly because I go early in the morning and do 18:6) - I’ve tried eating before and going later but I don’t feel any benefit, if anything it’s a detriment to me.
Maybe keep a snack bar handy incase you do crash, but if you fast a lot this seems unlikely. Best of luck!
I have been doing IF 16:8 for a week now and going to the gym everyday.I always have lunch at 11:00 and start working out at 11:40 till 13:20 (so around 1.5 hours) and I feel great. Doesnt matter if I had a salad or beef and some pasta (but I don’t usually eat huge amounts and I keep it around 450 kcal)
Sounds like you want to be on what’s called the Warrior diet. Basically you just eat one meal a day - like dinner.
Your performance shouldn’t suffer in the weight room just because you’re fasting… Strength comes from mind/body connection - building muscle comes from hormones. Ideally, a lot of performance is simply overcoming your mindset.