nvim/lua/plugins/ui/scroll.lua

local M = {
  "karb94/neoscroll.nvim",
}

M.config = function()
  require("neoscroll").setup({
    -- All these keys will be mapped to their corresponding default scrolling animation
    mappings = { "<C-u>", "<C-d>" },
    hide_cursor = true, -- Hide cursor while scrolling
    stop_eof = true, -- Stop at <EOF> when scrolling downwards
    respect_scrolloff = false, -- Stop scrolling when the cursor reaches the scrolloff margin of the file
    cursor_scrolls_alone = true, -- The cursor will keep on scrolling even if the window cannot scroll further
    easing_function = nil, -- Default easing function
    pre_hook = nil, -- Function to run before the scrolling animation starts
    post_hook = nil, -- Function to run after the scrolling animation ends
    performance_mode = false, -- Disable "Performance Mode" on all buffers.
  })
  local neoscroll = require("neoscroll")

  local t = {
    ["<C-u>"] = function()
      neoscroll.ctrl_u({ duration = 50 })
    end,
    ["<C-k>"] = function()
      neoscroll.ctrl_u({ duration = 50 })
    end,
    ["<C-d>"] = function()
      neoscroll.ctrl_d({ duration = 50 })
    end,
    ["<C-j>"] = function()
      neoscroll.ctrl_d({ duration = 50 })
    end,
  }

  local modes = { "n", "v", "x" }
  for key, func in pairs(t) do
    vim.keymap.set(modes, key, func)
  end
end

return M