diff --git a/.config/nvim/after/plugin/lsp.lua b/.config/nvim/after/plugin/lsp.lua
index d3720440..08e22394 100644
--- a/.config/nvim/after/plugin/lsp.lua
+++ b/.config/nvim/after/plugin/lsp.lua
@@ -242,6 +242,19 @@ vim.g.haskell_tools = {
             vim.opt_local.shiftwidth = 2
             on_attach(client, bufnr)
         end,
+        default_settings = {
+            haskell = {
+                checkProject = false, -- PERF: don't check the entire project on initial load
+                formattingProvider = "fourmolu",
+                plugin = {
+                    rename = {
+                        config = {
+                            diff = true, -- (experimental) rename across modules
+                        },
+                    },
+                },
+            },
+        },
         settings = function(project_root)
             local ht = require("haskell-tools")
             return ht.lsp.load_hls_settings(project_root, { settings_file_pattern = "hls.json" })