I just googled "Математика. Учебник для 11 класса" and browsed through the index for a few books released within the last 5-10 years. From the look it's about same level as AP Calculus AB.
English classes were particularly bad as well. I'd imagine in Russia you read Pushkin in first or second grade. In the US I don't think we were assigned an English classic instead of one of those bestselling children novels till grade 7 or 8.
Around Highschool it got a lot better, classes became differentiated based on student levels, also AP courses (we were offered the opportunity to take other AP subjects which weren't taught in school for free online as well).
Also I certainly don't think IPads are the cure here, as far as I am concerned ed-tech is a blatant scam to build a business from poor administrative use of tax-payer money.