diff --git a/CHANGELOG.md b/CHANGELOG.md
index ed5c0a4..35dc5a0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,4 @@
+- V 0.14.0: Introduced strictness, which brought a significant increase in performance. See the discussion here: https://old.reddit.com/r/haskell/comments/picjy6/how_could_i_improve_the_performance_of_my/
 - V 0.13.0: Major rewrite with the vector library - includes multiple bugfixes, but is surprisingly slow
 - V 0.12.0: Renamed some core functions
 - V 0.11.0: Made calibration curve interpolation optional and turned it off by default
diff --git a/README.md b/README.md
index 1650052..9abfd7f 100644
--- a/README.md
+++ b/README.md
@@ -101,4 +101,5 @@ before rerunning the procedure above.
 ```
 stack build --profile
 stack exec --profile -- currycarbon "1000,200;2000,200;3000,200;4000,200;5000,200;6000,200;7000,200;8000,200" -q --densityFile /dev/null +RTS -p
+stack exec -- currycarbon "1000,200;2000,200;3000,200;4000,200;5000,200;6000,200;7000,200;8000,200" -q --densityFile /dev/null +RTS -s
 ```
diff --git a/currycarbon.cabal b/currycarbon.cabal
index 3902ae5..e7f1f0d 100644
--- a/currycarbon.cabal
+++ b/currycarbon.cabal
@@ -1,5 +1,5 @@
 name:                currycarbon
-version:             0.13.0
+version:             0.14.0
 synopsis:            A package for simple, fast radiocarbon calibration
 description:         Radiocarbon calibration with the intercept method optimised for fast calibration of many dates.
 license:             MIT
diff --git a/playground/test.R b/playground/test.R
index 022a3dd..0c4ddd7 100644
--- a/playground/test.R
+++ b/playground/test.R
@@ -31,3 +31,10 @@ bchron |> dplyr::left_join(
   geom_point(aes(x = calBCAD, y = value, colour = method), 
             size = 1, alpha = 0.5)
 
+### large test (for memory leaks)
+
+calpal <- c14bazAAR::get_calpal()
+calpal |> dplyr::select(c14age, c14std) |> readr::write_csv("/tmp/currycarbon_large_input_test.csv", col_names = F)
+
+#currycarbon --inputFile /tmp/currycarbon_large_input_test.csv -q --densityFile /dev/null
+
diff --git a/src/Currycarbon/Calibration.hs b/src/Currycarbon/Calibration.hs
index eeecea4..9d20f9f 100644
--- a/src/Currycarbon/Calibration.hs
+++ b/src/Currycarbon/Calibration.hs
@@ -1,3 +1,5 @@
+{-# LANGUAGE Strict #-}
+
 module Currycarbon.Calibration
     ( -- * Calibration functions
       --
diff --git a/src/Currycarbon/Types.hs b/src/Currycarbon/Types.hs
index 5414f20..d54ce2a 100644
--- a/src/Currycarbon/Types.hs
+++ b/src/Currycarbon/Types.hs
@@ -1,3 +1,5 @@
+{-# LANGUAGE StrictData #-}
+
 module Currycarbon.Types where
 
 import qualified Data.Vector.Unboxed as VU