To expand on the case for the tune being less than ideal- It's an off the shelf file, designed for a stock dp, meant to produce high power. The result is that, likely to protect the stock dp from high EGTs amongst other things, APR has a lot of protections in place that make for inconsistent performance, even on the street. They also tend to tune boost heavy and timing conservative too which isn't ideal for heat management either.
Options- I self tuned mine using simos tools, but if you don't want to DIY it there are tuners like Russell Road & Racing and GLS Performance that can make you a tune using simos allowing you to utilize the advanced datalogging features, map switching etc. that simos offers. The datalogging makes determining where any other pain points are that much easier too.
If you want to take the path more commonly traveled, EQT has tuned DTRs and in general has a great reputation. They can tune you via a Cobb Access port. Still a solid option, but I can't recommend the simos route enough personally.
Either way, switching tunes will net you more consistent performance and would be my next step if I were in your spot. There are likely improvements to be had with hardware as well, but the tune will likely make the biggest difference and give you a good basis from which to refine