Jetson Xavier Low bandwidth on PCIe

I am trying to connect a Jetson Xavier (as host) to a Xilinx ZCU106 using PCIe. I am using the Xilinx DMA drivers (dma_ip_drivers/XDMA/linux-kernel at master · Xilinx/dma_ip_drivers · GitHub).

Although I did not expect to reach the theoretical maximum speeds possible my bandwidth seems very low. I am achieving roughly 1.8 GB/s write speeds and 1.4 GB/s read speeds. Is there anything I can do increase my throughput?

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