Irqbalancing + Orange Pi R1 Plus LTS

Hey! im facing some issues with irqbalancing.
im using an orange pi r1 plus lts with OpenWrt 21.02.2 r16495-bf0c965af0 and i cant manage irqbalancing through all cores (0,1,2,3) But, i can assign a single core to an irq, but not two or more. i've triede these procedures with iperf3 and lan to lan (cat5e cable).
Any advice?
Thank you!