Scripts like "Ruby Rain" or various recoded configs are often used to prevent game crashes while performing rapid movement sequences like "vent hopping". Performance vs. "Movement Cheating"
Many players distinguish between (legal console commands) and external cheats (third-party software). thrilltrip Movement Cheat for CSGO
Automates jumping the instant the player touches the ground to maintain and gain velocity. Scripts like "Ruby Rain" or various recoded configs