Raid 0 nvme disk configuration is slower

I installed MySQL db for storing my simulation data in phd. First I used a pc with i7-8700 cpu, 24 gb ram and 1 TB nvme disk. Then I transferred data to a newer pc with i7-12700 cpu, 48 GB ram and 2x1 nvme 1 TB disk in soft raid0 configuration. Since then my query performance become very slow. It was 10-15 minutes in old pc to 2.5 hours on the newer hardware. I configured the conf file according to new hardware but nothing changed. Any ideas please. I am desperate.