Usually overland when I'm away from cities my fps is at the display refresh rate (v-sync enabled), but when I use Rapid Maneuver while mounted I get about a second or 2 with fps around 20. Same thing happens when I'm dismounting. When I'm not mounted, using Rapid Maneuver doesn't cause the fps drop, neither does mounting, only dismounting and using it while mounted.
Anyone else has this issue? Any idea what could cause it?