Cortana has always been ram hungry... (during startup it uses up to 40% ram for about 3-8 GB of data it collects,then it settles until windows starts checking for anything (defender updates,Microsoft updates, ads,rootkits,cia exploits and backdoors ),so basically every 2 minutes unless you go into registry and disable all microspy ware and Cortana itself , same for Apple ... no one notices that when you don’t add any credit card on Idevices ,it goes slower and slower , and suddenly it uses more temp storage then when you did add your private data and credit card into iCloud