I had a huge glitch with my client today, it chose a different champion for me.. THIS CLIENT IS BAD

I had a huge glitch with my client today, it chose a different champion for me.. I spam click on zed and for a solid 5 seconds, and it just chose Lucian and wouldn't budge

Also my friend told me yesterday his client was stuck and super laggy, I didn't believe him until the next coincidental game, I had an enormous lag as well