And i think my laptop litte slow. How i can speed up?
Big Sur is still slower than previous versions.
Сurrently we have three problems with Big Sur on our laptop:
1. Reduced performance than Catalina
2. Greater heating than on Catalina and, accordingly, more noise
3. Sticking GPU frequencies after sleeping at 350MHz sometimes
I read some interesting info about performance problems on Big Sur on MacBook 16"
The owner writes that he also had performance problems on the Big Sur and think about to return to Catalina. But he accidentally discovered that problems arose when he was charging the laptop not through a original cable and in System information - Power - AC Charger Information Wattage was equal to 60W
After he connected the charging via original cable, all the lags disappeared and the AC Charger Information Wattage was equal to 91W
I decided to check with myself and see that in Big Sur the adapter outputs 60W, although the adapter itself is original 130W
By the way, after I switched from MacBookPro 13.3 to 13.2 in SMBIOS, the system felt faster and the strange friezes and lags disappeared. Perhaps due to the fact that in the MacBookPro 13.2 the native adapter is just 61W
But in any case, there is increased heating and noise. I found some tests on real MacBooks and there, too, BigSur is 5-7 Celsius degrees higher than in Catalina with the same load.