MacBook Air 2020 Intel Core i3

I just recently purchased a MacBook Air 2020 Intel Core i3 under the Education Store since I work with the school district. We do save $159.00 on Mac laptops and iPads. Since I am on the budget and not working due to COVID-19 pandemic, I did not want to spend $100.00 more upgrading to Intel Core i5 since I have upgraded the 1TB storage space. The state tax is $150.00+ depending on where you live. I also own a DELL laptop with Intel Core i5-7th generation. Yes, my DELL laptop does overheat sometimes. I read that the Intel Core i3 is slower than the i5 and i7. I spoke to an Apple Specialist and suggested that the i3 is the best choice for me. This is my first Macbook and the reason I purchased it so that it is easier for me to text people and sent photos to them. It is way too expensive for me to purchase a Macbook Pro if I wanted Intel Core i5 on my laptop. The Apple Specialist said the reason our older laptops start to slow down because of its age and not the storage.