No one likes to play a competitive shooter game with a high ping, especially when they normally have a solid connection to the game servers. It might sound silly to some, but tournaments are played over LAN for a reason, and the ping can be a huge factor for some players.
The first thing to do is understand that ping issues cannot always be resolved. Depending on your internet connection, the time of day, and the day of the week, your ping may be a little higher due to the fact that there are many other people using the internet in your area.
You should also check if the increased ping for players is a known issue at the time you experience it. If it's on ValorantServers, you can check the server status page and check the Twitter page to see if developer Riot Games has announced a possible issue.
If you've noticed a dramatic increase in ping and subsequent reduction in the quality of the game connection, there might even be a permanent issue with your own internet connection that your ISP needs to fix.
If your ping is consistently high for every game you play, then the problem is more than likely your connection, and a line upgrade or a router upgrade may be required. Depending on where you live, this can be fixed by changing your ISP, so be sure to shop around the different services in your area to see which offers the best deal.
The last thing you need to check is who else is using the same interconnect as you and what they are doing. Too much information going in or out of the line will impact your connection to the game, but resolving this issue can be trickier, depending on your household.
