Slow resume from Suspend mode

Hi.

I have 2 N2+ boxes running Coreelec 19.5 and 1 T95z running 18.9.
I noticed when I wake up my T95z from suspend, it’s up and running in 2-3 seconds but both N2+ takes 20-30 seconds. I remember that they used to be much more snappy on waking up from Suspend but can’t figure out which settings might affect that.

Anyone can help?
Thank

Maybe start here