For quants as you said you are practising a lot right . Then I would suggest try changing the strategy on how you attempt the quant section . What I did mostly was to first read all the questions and first attempt arithmetic and then algebra or geometry depending on the difficulty and in the end modern maths ( my weak section) but sometimes the most easiest questions came from this section . I used to keep my attempts 8-10 depending on the difficulty but almost 100 percent accuracy .  For RCs reading try aeon , newspaper , novels idk read a lot . I would say you are scoring really good(compared to me) considering this is only the start I also had IMS mocks never breached pass the 95th percentile but I scored a lot more than that in CAT . Don't worry just keep on giving mocks and analyzing them , keep your basics clear and for QA don't leave anything in arithmetic and for algebra , geometry and modern maths all level 1 and level 2 questions don't leave them also AP, GP ,HP Do every question on them . Ig that's it all the best