I recently came across a new platform while browsing, and I was surprised by how smooth and fast the overall experience feels compared to others I've tried before, especially in terms of loading speed and usability —
https://www.mateball.com/u431pe4xtqa
https://mooc.rtu.lv/members/x52mjwouxy853/profile/
https://normalcracker.mylearndash.com/members/au44ff/activity/