so I play ranked a lot and my league launcher somehow only opens after the 2-3 minute mark meaning my teammates can remake before I can even get in the game and I always get the 20 min queue for 5 games can anyone please help me
I suggest using the HexTech Repair Tool available directly from Riot: https://support-leagueoflegends.riotgames.com/hc/en-us/articles/224826367-Automated-Troubleshooting-Hextech-Repair-Tool
It will tell you about known issues, has options for re-applying the latest patch or reinstalling the client altogether, it will adjust your firewall settings appropriately if you let it, and has as some other repair options.
One of the important things the official HexTech repair tool will do is to generate logs for use should you contact Riot support.
Of course, make sure you meet the minimum system requirements for the game (and preferably the recommended ones): https://support-leagueoflegends.riotgames.com/hc/en-us/articles/201752654-Minimum-and-Recommended-System-Requirements
If you're unsure how to find your machine specs, there's a tool for that as well: https://www.pcgamebenchmark.com/league-of-legends-system-requirements