TikTok Cold Traffic 2 Percent Conversion Rate Need CPA Optimization Advice

I am driving TikTok cold traffic with around 2 to 3k clicks per day to an iPhone 17 Pro Max giveaway sweepstakes offer, but my conversion rate is stuck at about 2 percent. I have been away from CPA for some time and would appreciate experienced feedback on whether the main issue is the offer, the prelander, or the funnel, and how I can improve overall performance.