Waking from stand-by issue.. Memory leak?

Hey guys…
got a decent spec HTPC connected to my 4k tv.
I keep it on mostly 24/7 uptime however when I want to go back to it from going to sleep or watching something elsewhere i.e. changing input on my tv and hdmi and waking up my PC Kodi becomes unusablely slow with horrendous video drops.
I checked and it seems my memory is peaking but not moving at all around 70%
Could this be a memory leak issue? HDMI issue? Windows? Kodi?

My current only fix is to restart my pc
Hella annoying ^^^

Would be forever grateful for any assistance