Metal 2 Concern

Good day to you all! I am a new user to the Apple Developer website in search for a solution to my issue. I have already contacted two Apple Support agents regarding the issue, but I would like further assistance here. I’ve been playing some video games, Roblox in particular, and the game appears to be noticeably stuttering. The movement of my character has no issue, but the environment/background is the one that stutters. I’m not sure whether this is a Roblox or Metal issue. I’ve suspected it’s Metal because the game supports it. The stuttering issue stopped when I upgraded from Sierra to High Sierra (10.13). When I just recently updated to version 10.13.1, the stuttering had returned. I already tried resetting the SMC and VRAM. Also created a new user account, but the issue persisted. Hopefully, I could get more answers and help through contacting the developers. Thanks for reading!