diff --git a/minetest.conf b/minetest.conf
index d63436c415..7e1ca9cd86 100644
--- a/minetest.conf
+++ b/minetest.conf
@@ -34,7 +34,6 @@ keepInventory = false
 
 # Performance settings
 dedicated_server_step = 0.001
-liquid_update = 0.25
 abm_interval = 0.25
 max_objects_per_block = 4096
 max_packets_per_iteration = 10096
diff --git a/mods/ITEMS/mcl_fire/init.lua b/mods/ITEMS/mcl_fire/init.lua
index 6739c8d9c2..f11c683a60 100644
--- a/mods/ITEMS/mcl_fire/init.lua
+++ b/mods/ITEMS/mcl_fire/init.lua
@@ -47,7 +47,72 @@ local alldirs=
 	{ x = 0, y = 0, z = 1}
 }
 
+-- 3 exptime variants because the animation is not tied to particle expiration time.
+-- 3 colorized variants to imitate minecraft's
+local smoke_pdef_base = {
+  amount = 0.001,
+  time = 0,
+  -- minpos = vector.add(pos, { x = -0.45, y = -0.45, z = -0.45 }),
+  -- maxpos = vector.add(pos, { x = 0.45, y = 0.45, z = 0.45 }),
+  minvel = { x = -0.1, y = 0.3, z = -0.1 },
+  maxvel = { x = 0.1, y = 1.6, z = 0.1 },
+  -- minexptime = 3 exptime variants,
+  -- maxexptime = 3 exptime variants
+  minsize = 4.0,
+  maxsize = 4.5,
+  -- texture = "mcl_particles_smoke_anim.png^[colorize:#000000:(3 colourize variants)",
+  animation = {
+    type = "vertical_frames",
+    aspect_w = 8,
+    aspect_h = 8,
+    -- length = 3 exptime variants
+  },
+  collisiondetection = true,
+}
+local smoke_pdef_cached = {}
 local spawn_smoke = function(pos)
+  local min = math.min
+  local new_minpos = vector.add(pos, { x = -0.45, y = -0.45, z = -0.45 })
+  local new_maxpos = vector.add(pos, { x = 0.45, y = 0.45, z = 0.45 })
+
+  -- populate the cache
+  if not next(smoke_pdef_cached) then
+    -- the last frame plays for 1/8 * N seconds, so we can take advantage of it
+    -- to have varying exptime for each variant.
+    local exptimes = { 0.75, 1.5, 4.0 }
+    local colorizes = { "199", "209", "243" } -- round(78%, 82%, 90% of 256) - 1
+
+    local id = 1
+    for _,exptime in ipairs(exptimes) do
+      for _,colorize in ipairs(colorizes) do
+        smoke_pdef_base.minpos = new_minpos
+        smoke_pdef_base.maxpos = new_maxpos
+        smoke_pdef_base.maxexptime = exptime
+        smoke_pdef_base.animation.length = exptime + 0.1
+        -- minexptime must be set such that the last frame is actully rendered,
+        -- even if its very short. Larger exptime -> larger range
+        smoke_pdef_base.minexptime = min(exptime, (7.0/8.0 * (exptime + 0.1) + 0.1))
+        smoke_pdef_base.texture = "mcl_particles_smoke_anim.png^[colorize:#000000:" ..colorize
+
+        smoke_pdef_cached[id] = table.copy(smoke_pdef_base)
+
+        mcl_particles.add_node_particlespawner(pos, smoke_pdef_cached[id], "high")
+
+        id = id + 1
+      end
+    end
+
+  -- cache already populated
+  else
+    for i, smoke_pdef in ipairs(smoke_pdef_cached) do
+      smoke_pdef.minpos = new_minpos
+      smoke_pdef.maxpos = new_maxpos
+      mcl_particles.add_node_particlespawner(pos, smoke_pdef, "high")
+    end
+  end
+
+--[[ Old smoke pdef
+  local spawn_smoke = function(pos)
 	mcl_particles.add_node_particlespawner(pos, {
 		amount = 0.1,
 		time = 0,
@@ -67,6 +132,8 @@ local spawn_smoke = function(pos)
 			length = 2.1,
 		},
 	}, "high")
+  -- ]]
+
 end
 
 --
diff --git a/mods/ITEMS/mcl_portals/portal_nether.lua b/mods/ITEMS/mcl_portals/portal_nether.lua
index 7e23a9f7bf..32a24e092a 100644
--- a/mods/ITEMS/mcl_portals/portal_nether.lua
+++ b/mods/ITEMS/mcl_portals/portal_nether.lua
@@ -64,7 +64,7 @@ local function destroy_nether_portal(pos)
 	local meta = minetest.get_meta(pos)
 	local node = minetest.get_node(pos)
 	local nn, orientation = node.name, node.param2
-	local obsidian = nn == "mcl_core:obsidian" 
+	local obsidian = nn == "mcl_core:obsidian"
 
 	local has_meta = minetest.string_to_pos(meta:get_string("portal_frame1"))
 	if has_meta then
@@ -138,8 +138,6 @@ minetest.register_node("mcl_portals:portal", {
 	sunlight_propagates = true,
 	use_texture_alpha = minetest.features.use_texture_alpha_string_modes and "blend" or true,
 	walkable = false,
-	diggable = false,
-	pointable = false,
 	buildable_to = false,
 	is_ground_content = false,
 	drop = "",
@@ -152,7 +150,8 @@ minetest.register_node("mcl_portals:portal", {
 			{-0.5, -0.5, -0.1,  0.5, 0.5, 0.1},
 		},
 	},
-	groups = {portal=1, not_in_creative_inventory = 1},
+	groups = { creative_breakable = 1, portal = 1, not_in_creative_inventory = 1 },
+	sounds = mcl_sounds.node_sound_glass_defaults(),
 	on_destruct = destroy_nether_portal,
 
 	_mcl_hardness = -1,
@@ -583,7 +582,7 @@ local function check_and_light_shape(pos, orientation)
 		meta:set_string("portal_time", tostring(0))
 		meta:set_string("portal_target", "")
 	end
-	return true	
+	return true
 end
 
 -- Attempts to light a Nether portal at pos
@@ -842,7 +841,7 @@ minetest.override_item("mcl_core:obsidian", {
 	_on_ignite = function(user, pointed_thing)
 		local x, y, z = pointed_thing.under.x, pointed_thing.under.y, pointed_thing.under.z
 		-- Check empty spaces around obsidian and light all frames found:
-		local portals_placed = 
+		local portals_placed =
 				mcl_portals.light_nether_portal({x = x - 1, y = y, z = z}) or mcl_portals.light_nether_portal({x = x + 1, y = y, z = z}) or
 				mcl_portals.light_nether_portal({x = x, y = y - 1, z = z}) or mcl_portals.light_nether_portal({x = x, y = y + 1, z = z}) or
 				mcl_portals.light_nether_portal({x = x, y = y, z = z - 1}) or mcl_portals.light_nether_portal({x = x, y = y, z = z + 1})
@@ -863,4 +862,3 @@ minetest.override_item("mcl_core:obsidian", {
 		end
 	end,
 })
-
diff --git a/mods/PLAYER/mcl_sprint/init.lua b/mods/PLAYER/mcl_sprint/init.lua
index f3ea42f2cf..9dc678000c 100644
--- a/mods/PLAYER/mcl_sprint/init.lua
+++ b/mods/PLAYER/mcl_sprint/init.lua
@@ -50,16 +50,27 @@ end
 
 local function setSprinting(playerName, sprinting) --Sets the state of a player (0=stopped/moving, 1=sprinting)
 	local player = minetest.get_player_by_name(playerName)
+	local controls = player:get_player_control()
 	if players[playerName] then
 		players[playerName].sprinting = sprinting
-		if sprinting == true then
-			players[playerName].fov = math.min(players[playerName].fov + 0.05, 1.2)
-			player:set_fov(players[playerName].fov, true, 0.15)
-			playerphysics.add_physics_factor(player, "speed", "mcl_sprint:sprint", mcl_sprint.SPEED)
-		elseif sprinting == false then
+		if sprinting == true or controls.RMB and string.find(player:get_wielded_item():get_name(), "mcl_bows:bow") and player:get_wielded_item():get_name() ~= "mcl_bows:bow" then
+			if sprinting == true then
+				players[playerName].fov = math.min(players[playerName].fov + 0.05, 1.2)
+				players[playerName].fade_time = .15
+			else
+				players[playerName].fov = .7
+				players[playerName].fade_time = .3
+			end
+			player:set_fov(players[playerName].fov, true, players[playerName].fade_time)
+			if sprinting == true then
+				playerphysics.add_physics_factor(player, "speed", "mcl_sprint:sprint", mcl_sprint.SPEED)
+			end
+		elseif sprinting == false and player:get_wielded_item():get_name() ~= "mcl_bows:bow_0" and player:get_wielded_item():get_name() ~= "mcl_bows:bow_1" and player:get_wielded_item():get_name() ~= "mcl_bows:bow_2" then
 			players[playerName].fov = math.max(players[playerName].fov - 0.05, 1.0)
 			player:set_fov(players[playerName].fov, true, 0.15)
-			playerphysics.remove_physics_factor(player, "speed", "mcl_sprint:sprint")
+			if sprinting == false then
+				playerphysics.remove_physics_factor(player, "speed", "mcl_sprint:sprint")
+			end
 		end
 		return true
 	end