diff --git a/src/p_enemy.c b/src/p_enemy.c
index 7db2ace39..fe9a6e178 100644
--- a/src/p_enemy.c
+++ b/src/p_enemy.c
@@ -8272,7 +8272,7 @@ void A_Boss3ShockThink(mobj_t *actor)
 		fixed_t x0, y0, x1, y1;
 
 		// Break the link if movements are too different
-		if (FixedHypot(snext->momx - actor->momx, snext->momy - actor->momy) > 12*actor->scale)
+		if (R_PointToDist2(0, 0, snext->momx - actor->momx, snext->momy - actor->momy) > 12*actor->scale)
 		{
 			P_SetTarget(&actor->hnext, NULL);
 			return;
@@ -8283,9 +8283,11 @@ void A_Boss3ShockThink(mobj_t *actor)
 		y0 = actor->y;
 		x1 = snext->x;
 		y1 = snext->y;
-		if (FixedHypot(x1 - x0, y1 - y0) > 2*actor->radius)
+		if (R_PointToDist2(0, 0, x1 - x0, y1 - y0) > 2*actor->radius)
 		{
-			snew = P_SpawnMobj((x0 + x1) >> 1, (y0 + y1) >> 1, (actor->z + snext->z) >> 1, actor->type);
+			snew = P_SpawnMobj((x0 >> 1) + (x1 >> 1),
+				(y0 >> 1) + (y1 >> 1),
+				(actor->z >> 1) + (snext->z >> 1), actor->type);
 			snew->momx = (actor->momx + snext->momx) >> 1;
 			snew->momy = (actor->momy + snext->momy) >> 1;
 			snew->momz = (actor->momz + snext->momz) >> 1; // is this really needed?