So i opened my old acer laptop to clean it, to find that the cpu is upgradable, its an intel t4500 2.3ghz, the best upgrade with the same TDP and socket is
Intel claims world's highest-performing mobile processor | AppleInsider
Intel CPU laptop T4500 Dual Core T4500 2.3Ghz 1MB 800 SLGZC Free shipping _ - AliExpress Mobile
Amazon.com: New OEM Intel Core T4500 SLGZC Socket P Mobile CPU Processor 2.3Ghz 1MB 800MHz : מוצרי חשמל