First off let's talk about the mouse. Razer is okay but honestly hyperx has it pretty good and way lighter. Here's a hyperx one and I love it, it's got mini mechanical switches in it so it's very responsive and never misregisters a click https://www.amazon.com/HyperX-Pulsefire-Haste-Ultra-Lightweight-Programmable/dp/B08NSJFNSS

For keyboard, that's a membrane keyboard and it's low quality for the price. You can't upgrade the switches and keycaps at all, as it has no mechanical switches and doesn't have the switch stem for the keycap replacement. This keyboard is way better for the price and drops down all the way to $35 usd sometimes, you may want to swap the switches out for something that's less sensitive and it's not super high priced depending on the switches you purchase. I hope this helps