Ekko Causing Keyboard Issues/Lag

So, everytime i play a game with Ekko in it i seem to have issues with my keyboard. At random times in the game i wont be able to cast my spells because its not registering my button being pressed. It's happened countless times. It's a big problem when i get into a fight and cant do anything or i miss a smite because of it. I really don't want to be reported and possibly banned for not playing good and possibly seen as intentional feeding or helping the other team. This has only been going on since Ekko was released, i have not had any problems beforehand. It is also not a problem with my keyboard specifically because i play other computer games as well and my keyboard works fine when im playing those. Hopefully it will be fixed soon. It may be some other reason but from what i've experienced it has been like this since patch 5.10. League is by far my favorite game and it sucks not being able to play to my full potential. Please help! Thanks!