HA on Virtual Machine - VirtualBox uses and shows much more CPU usage than on Pi2

Hi, I have just moved my HA to Virtual Machine - VirtualBox on laptop I am using for cameras recording. The laptop has Core 2 Duo, which is much more powerful then Pi2 according to benchmarks. My Pi2 used like 10-20% CPU, HA is almost like a fresh installation, it uses just Node-Red, Samba and Mqtt broker with 5 Tasmota devices. However the VM uses 70-90% of the laptop CPU, the CPU usage in HA shows 100% everything latest versions installed.
Is it even possible that 10-20% on Pi2 could be 70-90% on that laptop CPU?