Our VPS, on which OneBox is located, was moved to a more powerful server, OneBox is unstable. Do you need settings for new hardware?

Good afternoon Tonight, our VPS, on which OneBox is located, was transferred to a more powerful hardware. Earlier, we had a problem with the system with hangs, but on Monday evening, the load on the server dropped sharply and everything worked more or less stably. As I understand it, probably some work on this matter was carried out on your part, which we discussed with the integrators to stabilize the operation of our system. However, the move to a more powerful server was planned earlier and was carried out. A few years ago, the same employees of Hvosting did the same transfer of the air force to a more powerful iron on the recommendation of OneBox and coped with it without problems. In the "server load monitoring" module, an increase in RAM is visible, other changed parameters are not displayed. Today, the system works with strange bursts of load. It is stable at about 30%, and then at some point it jumps up to 150% with all the previous hang-ups. Are additional settings o