I agree they don't fast charge but (and I may be wrong) I prefer a slower charge for battery life. Ok sometimes I may want a fast charge but rarely. My phone has adaptive charging... It gets to know my charging routine and any alarms and will slow charge using all the time "Your phone will be...
I installed twin sockets with twin usb outlets several years ago in kitchen, bedrooms, living rooms, workshop. I get the cheapest from Toolstation, never a problem charging anything, laptops, tablets, phones, torches etc.
Do you like court room dramas? Best is the Post Office Enquiry, it's live and recorded. View day 103 (this week).it's gripping (not joking it's great) CE GT, the barristers are clever, post office security workers squirming.