iPhone 13 seems to get slow at low battery

It's been about 4+ months since I'm using my iPhone 13. But I have noticed one thing, I don't use my phone other than social media stuff but I have noticed one thing that when the battery reaches low like 30..20% then it shows some signs of slowing down.

UI feels very fast and responsive when I use the phone after charging but at the end of the day whenever it reaches near about 30% it feels like UI responsiveness is reduced not by much but I still feel like something has changed.

My iPhone, all apps everything is always up-to-date. Is there any fix for this??

Edit: And I'm always using my phone in normal mode, I never use battery saver mode even if it goes to 4..5%.