Leader j doesn't work because it delays space in insert mode

lua/mappings.lua

@@ -9,8 +9,8 @@ map("n", "<leader>;", ":")
 map("v", "<leader>;", ":")
 
 -- easier than reaching for escape
-map("i", "<leader>j", "<Esc>")
-map("v", "<leader>j", "<Esc>")
+map("i", "<A-n>", "<Esc>")
+map("v", "<A-n>", "<Esc>")
 
 -- navigate tabs
 map("n", "<C-h>", "gT")
@@ -21,9 +21,9 @@ map("n", "<C-x>", "<cmd>x<CR>")
 map("n", "<C-q>", "<cmd>q!<CR>")
 
 -- terminal
-map("t", "<leader>j", "<C-\\><C-n>")
+map("t", "<A-n>", "<C-\\><C-n>")
 map("t", "<Esc>", "<C-\\><C-n>")
-map("n", "<leader>t", "<cmd>vsp<CR><cmd>terminal<CR>i")
+map("n", "<A-n>", "<cmd>vsp<CR><cmd>terminal<CR>i")
 
 -- commenting out
 map("n", "<C-\\>", "gcc", { remap = true })

lua/options.lua

@@ -18,7 +18,7 @@ local options = {
   splitright = true,                       -- force all vertical splits to go to the right of current window
   swapfile = false,                        -- disable swapfile
   termguicolors = true,                    -- set term gui colors (most terminals support this)
-  timeoutlen = 250,                        -- time to wait for a mapped sequence to complete (in milliseconds)
+  timeoutlen = 300,                        -- time to wait for a mapped sequence to complete (in milliseconds)
   undofile = true,                         -- enable persistent undo
   updatetime = 300,                        -- faster completion (4000ms default)
   writebackup = false,                     -- if a file is being edited by another program (or was written to file while editing with another program), it is not allowed to be edited

lua/plugins/telescope.lua

@@ -35,7 +35,7 @@ return {
         mappings = {
           i = {
             ["<esc>"] = actions.close,
-            ["<leader>j"] = actions.close,
+            ["<A-n>"] = actions.close,
             ["<C-t>"] = actions.select_tab, -- Open in new tab
             ["<C-y>"] = actions.select_vertical, -- Open in vertical split
           },