Index: sys/dev/vt/hw/vga/vt_vga.c
===================================================================
--- sys/dev/vt/hw/vga/vt_vga.c
+++ sys/dev/vt/hw/vga/vt_vga.c
@@ -1229,7 +1229,16 @@
 	bus_space_map(sc->vga_reg_tag, VGA_REG_BASE, VGA_REG_SIZE, 0,
 	    &sc->vga_reg_handle);
 
-	TUNABLE_INT_FETCH("hw.vga.textmode", &textmode);
+	/*
+	 * If "hw.vga.textmode" is not set and we're running on hypervisor,
+	 * we use text mode by default, this is because when we're on
+	 * hypervisor, vt(4) is usually much slower in graphics mode than
+	 * in text mode, especially when we're on Hyper-V.
+	 */
+	if (!TUNABLE_INT_FETCH("hw.vga.textmode", &textmode) &&
+	    vm_guest != VM_GUEST_NO)
+		textmode = 1;
+
 	if (textmode) {
 		vd->vd_flags |= VDF_TEXTMODE;
 		vd->vd_width = 80;