You will gain more performance if buy new gpu instead of cpu. My friend just bought new pc with Radeon RX 580 and Ryzen 5 2600 and he can run the game on high settings above 60 fps easily. I think that if you would go just for the gpu you should stay above 60 on lowest settings. Upgrading you cpu will require from you also to buy new motherboard and ram memory. Not sure about the prices in country you are but Ryzen 5 1600x + RX 580 also will allow you to play the game even on high settings. You can check how much it will cost you (if you can afford RX 590 that would be even better for you)
EDIT: Just checked on Amazon, RX 580 is for 219$, RX 590 270$, Ryzen 5 2600 is even cheaper than 1600X thats even better for you if you decide also to go for cpu (149$). Motherboard for that cpu - Gigabyte B450 AORUS ELITE 100$ and 16GB DDR4 3000MHz - G.SKILL 16GB 3000MHz Aegis CL16 ~100$. You can start with gpu and start saving for other parts
EDIT 2: Clean your actual pc if you havent for a long time, high temperatures can cause your gpu and cpu work on lower clocks
Hello thank you for responding my post. I am still trying to figure out the perfect setup. I actually have added the 1050ti to my setup as it is reasonably priced and should be able to run Starcraft 2 without any issues. Additionally I added this CPU my build but am having mixed doubts about it. https://www.amazon.com/dp/B07B41WS48/?coliid=I2H0OVOR1S4CVI&colid=1I3I9EFY1GOHJ&psc=1&ref_=lv_ov_lig_dp_it
AMD Ryzen 5 2600 Processor with Wraith Stealth Cooler - YD2600BBAFBOX
Sold by: Amazon.com Services LLC
$140.09
That's possible but box vs tray is common nomenclature for CPUs.
It's even included in the retail part model number.
AMD Ryzen 5 2600 Processor with Wraith Stealth Cooler - YD2600BBAFBOX
https://smile.amazon.com/AMD-Processor-Wraith-Stealth-Cooler/dp/B07B41WS48
Rayzen 5 "Amazon.com: AMD Ryzen 5 2600 Processor with Wraith Stealth Cooler - YD2600BBAFBOX: Computers & Accessories" https://www.amazon.com/AMD-Processor-Wraith-Stealth-Cooler/dp/B07B41WS48/ref=mp_s_a_1_1?ie=UTF8&qid=1541748155&sr=8-1-spons&pi=AC_SX236_SY340_FMwebp_QL65&keywords=ryzen+5&psc=1
The new geForce 1060 "Amazon.com: ASUS GeForce GTX 1060 6GB Dual-Fan OC Edition VR Ready Dual HDMI DP 1.4 Gaming Graphics Card (DUAL-GTX1060-O6G): Computers & Accessories" https://www.amazon.com/GeForce-Dual-Fan-Gaming-Graphics-DUAL-GTX1060-O6G/dp/B01JHQT1SE/ref=mp_s_a_1_3?ie=UTF8&qid=1541748298&sr=8-3&pi=AC_SX236_SY340_FMwebp_QL65&keywords=1060+6gb&dpPl=1&dpID=51T1GaSIVLL&ref=plSrch
Motherboard "Amazon.com: ASUS ROG STRIX B350-F GAMING AMD Ryzen AM4 DDR4 HDMI DisplayPort M.2 USB 3.1 ATX B350 Motherboard: Computers & Accessories" https://www.amazon.com/ROG-B350-F-GAMING-DisplayPort-Motherboard/dp/B071SGQP1Q/ref=mp_s_a_1_2?ie=UTF8&qid=1541748454&sr=8-2&pi=AC_SX236_SY340_QL65&keywords=am4+motherboard&dpPl=1&dpID=51tl1-gPBdL&ref=plSrch
8gb x2 ddr4 ram "Patriot Memory Viper Elite Series DDR4 8GB 2400MHz (PC4-19200) Single Module (Black/Grey) - PVE48G240C6GY at Amazon.com" https://www.amazon.com/Patriot-Memory-2400MHz-PC4-19200-Single/dp/B074Q1G6VR/ref=mp_s_a_1_5?ie=UTF8&qid=1541748631&sr=8-5&pi=AC_SX236_SY340_FMwebp_QL65&keywords=ddr4+ram&dpPl=1&dpID=41pVPcbOWIL&ref=plSrch
Power "Amazon.com: EVGA Supernova 750 G3, 80 Plus Gold 750W, Fully Modular, Eco Mode HDB Fan, 10 Year Warranty, Includes Power ON Self Tester, Compact 150mm Size, Power Supply 220-G3-0750-X1: Computers & Accessories" https://www.amazon.com/EVGA-Supernova-Modular-Warranty-220-G3-0750-X1/dp/B005BE058W/ref=mp_s_a_1_6?ie=UTF8&qid=1541748778&sr=8-6&pi=AC_SX236_SY340_FMwebp_QL65&keywords=power+supply&dpPl=1&dpID=51UcIW5x4QL&ref=plSrch
And pc case that you like :)