Trying to go fast makes you slower. The order in which speed really improves.
The usual reason typing speed plateaus is not slow hands but stopping to fix errors. One wrong character costs at least two or three extra actions to delete and retype. That is why moving accuracy from 95% to 99% changes perceived speed noticeably. Typing without mistakes ends up faster than trying to type fast.
Watching the keyboard sends your eyes back and forth between screen and keys, and that travel time caps your speed. Even if it feels slower at first, building the habit of not looking removes the cap. Resting fingers on the home position and assigning each finger its columns is the starting point.
What you type and how matters more than sheer volume. Repeating words you actually use often turns them into a single motion.
Korean typing is usually measured in keystrokes per minute and English in words per minute, where a word is conventionally counted as five characters. Because the bases differ, Korean keystroke counts cannot be compared directly with English word counts. Watching your own record change is more useful than comparing with someone else's number.
Forcing speed by striking hard loads the wrists and fingers. Keys do not need to be pressed hard, and keeping the wrist unbent matters more. Pain is a signal to check posture and equipment, not to add practice.
Each button runs this keyword on that search engine