Not yet, as I was using onpenCore I tried to see if it was because of it ... I made a pendrive again with the clover to verify, what I realized is that certain kexts cause the problem, either from Catalina, or from the kext folder of bootloader..I gave the boot, first without the video support kexts and etc. like Lilu and Whatervergreen, and flags such as: nv_disable = 1 the mouse ran like a racehorse without any problems afterwards without some flags..also all ok, when I replaced the Lilu and Whater kexts ... it returned as before.