Avoid restricting of the amount of time available to read text. If some restriction is unavoidable without impacting the experience for other players, allow a means for those who need to avoid it to reduce or disabled it. For example, if notifications appear for a short period and disappear, allow the period they are displayed for to be configured, and keep a log of them that can be viewed with no time restraints. If text scrolls past on a ticker, allow this to be paused and/or speed configured.
As well as the obvious benefit to people who have difficulty reading, this is again useful for a wide range of reasons – anyone who might have missed a notification through having looked away, been concentrating on a game, temporarily left the room and so on.
PS4 notifications log
Text in Guacamelee displayed indefinitely until dismissed
Next: Notification positioning