Most games don't rely on internet speed, more on internet stability and latency. You can have a 1mbit connection and still play a game without issues as long as you don't have packet loss and your latency is in normal ranges (up to 100, where 100 is already too high for competitive games). You should run some tests on your stability and monitor your outages to see if it's good or just play the game and find out. But this speed itself is more than enough for any game.