HAXM doesnt support nested virtual machines in citrix

I am trying to setup android environment in Citirix. When I opening the android virutal device getting the following error:

HAXM doesnt support nested virtual machines.

Consider using an x86 system image on an x86 host for better emulation performance.

I have tried to change the arm x86_64 but still getting error:

Emulator: C:\Users\a000\AppData\Local\Android\Sdk\emulator\qemu\windows-x86_64\qemu-system-aarch64.exe: warning: opening audio input failed

6:41 PM Emulator: emulator: WARNING: EmulatorService.cpp:448: Cannot find certfile: C:\Users\a000

6:41 PM Emulator: 22.android\emulator-grpc.cer security will be disabled.

6:41 PM Emulator: Started GRPC server at 127.0.0.1:8554

6:41 PM Emulator: Process finished with exit code -1073741819 (0xC0000005)