100M Wired Backhaul vs Wireless Backhaul Between Two Deco BE65

Which one would be better? Unfortunately the ethernet connection in my home only supports 100M since they used two splices of the cable for phone lines. I read somewhere that BE65 can do hybrid backhaul between wired and wireless, not sure if this is true. I did a speed test with wired backhaul and it topped out at 100M.