Competitive Card/ Deck Conditions

When using a competitive deck, I assume it will warp over time.

Are there acceptable limits in tournaments before organisers say 'no you're not playing as they are too warped/ noticeable'?

Or am I being paranoid?

I've ordered Silica gel for my deck boxes and have my cards sleeves but they will obviously bend through constant play and I'd rather not have to fork out more money to replace them when I use them.

That's what sleeves are for

To expand on what ddrox says, a worthwhile set of card sleeves like Dragon Shields basically prevent this entirely, and most sleeves at least mitigate curving and edge wear.