I did 4 rc today but the accuracy n understanding the rc n speed was a high problem n all three were the lowest can u pls help how to improve it

Focus solely on understanding the RC and accuracy right now. Do not go after speed. Read very slowly, reread a paragraph multiple times until you understand it properly. Mentally summarize each paragraph in your mind and while doing questions, use elimination technique. You should analyze in your mind- why a particular option is correct and why others are wrong. Keep practicing dense RCs everyday and you will eventually start solving easily.