Short of switching to a wired keyboard or mouse, there are a few tricks for reducing serious input lag.

假如没有有线键鼠可供换上，这儿还是有一些小窍门来减少严重的输入延迟。

youdao

Portending a dilemma faced even on today's tablets, ViewSonic, an early supporter, offered a (wired) keyboard for its two models.

ENGADGET: Switched On: When the smartphone giveth, Part 2

That's where Matias's wireless Laptop Pro keyboard for Mac comes in. (The company makes a wired version for PC, too.) Its switch technology confers the tactile response of a traditional mechanical keyboard, but sounds no louder than the office standard issue.

WSJ: Keys That Really Click

The limitations to my system is that it requires wired connections and a half dozen control devices, a full sized keyboard and mouse.

FORBES: 6 Answers About Your Next TV, With Or Without Apple