Actually I'm currently using intel i3 7th gen machine,which is lagging a lot on multitasking .I usually do a lot of programming stuff(c,python, java etc).also works on frontend and backend development. Currently I'm facing a huge lagging problem on my system. That's why I am finding a suitable laptop which is enough powerful. But now there are lot of choices available in the market ,which are so confusing. guy's can you show some light, which laptop should I go for?