It also comes at a price point appropriate for a lot of writers. Remember that green indicator should shine near the lock symbol on your laptop's keyboard.
The more practice you will get under your belt, the faster your typing-fu will be. It also applies to the connection to the PC.
Type a lot, type tests, practice typing tests.
In general, the less your CPU is burdened, the faster the input can be processed. If on your laptop you can't find keys with tiny numbers - try them. Yes, this is a free typing test.